1

Topic: SMTP error: Failed to write to socket: unknown error

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- iRedMail version (check /etc/iredmail-release): 0.9.0
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====
Problem is with sending email to mail list (about 3000 users) with 2 Mb attachment.
I use roundcube.
1. If I send just text in email to this mail list, its ok.
2. If I send email with 2Mb attachment to small maillist (1-2 users), its ok.
3. But if I send email with 2Mb attachment to big mail list (~3000 users), its failed after 1-2 minute with error: "SMTP error: Failed to write to socket: unknown error."
And I see this error in the mail log. And no other errors that can help me to solve the problem.

----

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2

Re: SMTP error: Failed to write to socket: unknown error

It might be caused due to Postfix is trying to verify recipient domain via DNS query, please try to remove 'reject_unknown_recipient_domain' in /etc/postfix/main.cf, reload or restart postfix service, then try again.

3

Re: SMTP error: Failed to write to socket: unknown error

ZhangHuangbin wrote:

It might be caused due to Postfix is trying to verify recipient domain via DNS query, please try to remove 'reject_unknown_recipient_domain' in /etc/postfix/main.cf, reload or restart postfix service, then try again.

I did this. But it didn't help.
Additional infromation: Sender and receipients are local users, in the same one domain.

4

Re: SMTP error: Failed to write to socket: unknown error

Please upgrade iRedAPD to the latest 1.8.0 and try again. There's a bug in reject_sender_login_mismatch in old iRedAPD release.
Reference: http://www.iredmail.org/docs/upgrade.iredapd.html

5

Re: SMTP error: Failed to write to socket: unknown error

ZhangHuangbin wrote:

Please upgrade iRedAPD to the latest 1.8.0 and try again. There's a bug in reject_sender_login_mismatch in old iRedAPD release.
Reference: http://www.iredmail.org/docs/upgrade.iredapd.html

I upgrade iRedAPD to the latest version 1.8.0, also completly migrate from cluebringer to iRedAPD as it said in the 1.7.0 version  upgrade instruction. But the problem not solved. It still error after 60-70 seconds:

"Mar 24 23:46:33 mail roundcube: <5o5pjs26> SMTP Error: Failed to send data. Failed to write to socket: unknown error in /usr/local/www/roundcube/program/lib/Roundcube/rcube.php on line 1714 (POST /mail/?_task=mail&_unlock=loading1458841575150&_lang=ru&_framed=1?_task=mail&_action=send)"

and then

"Mar 24 23:46:51 mail postfix/smtpd[27062]: lost connection after DATA (139222 bytes) from localhost[127.0.0.1]"

6

Re: SMTP error: Failed to write to socket: unknown error

Could you please show us FULL log in /var/log/maillog RELATED to your testing email?

7

Re: SMTP error: Failed to write to socket: unknown error

ZhangHuangbin wrote:

Could you please show us FULL log in /var/log/maillog RELATED to your testing email?

Log:
Mar 25 08:48:31 mail postfix/smtpd[53804]: connect from localhost[127.0.0.1]
Mar 25 08:48:31 mail postfix/smtpd[53804]: 4CA584091CA56: client=localhost[127.0.0.1], sasl_method=LOGIN, sasl_username=admin@enu.kz
Mar 25 08:49:36 mail roundcube: <lagk41rv> SMTP Error: Failed to send data. Failed to write to socket: unknown error in /usr/local/www/roundcube/program/lib/Roundcube/rcube.php on line 1714 (POST /mail/?_task=mail&_unlock=loading1458874157235&_lang=ru&_framed=1?_task=mail&_action=send)
Mar 25 08:49:57 mail postfix/cleanup[53601]: 4CA584091CA56: message-id=<0138d2d4523327641a56c95a2f9f0b94@enu.kz>
Mar 25 08:49:57 mail postfix/smtpd[53804]: lost connection after DATA (139222 bytes) from localhost[127.0.0.1]
Mar 25 08:49:57 mail postfix/smtpd[53804]: disconnect from localhost[127.0.0.1]

8

Re: SMTP error: Failed to write to socket: unknown error

Please set parameter in Roundcube config file, try to send email again, and extract related log again:

$config['smtp_debug'] = true;

You can find Roundcube config file here:
http://www.iredmail.org/docs/file.locat … be-webmail

9

Re: SMTP error: Failed to write to socket: unknown error

ZhangHuangbin wrote:

Please set parameter in Roundcube config file, try to send email again, and extract related log again:

$config['smtp_debug'] = true;

You can find Roundcube config file here:
http://www.iredmail.org/docs/file.locat … be-webmail

Here is maillog with rouncude setting smtp_debug=true:

Mar 25 19:44:41 mail postfix/smtpd[21198]: connect from localhost[127.0.0.1]
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 220 mail.enu.kz ESMTP Postfix
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: EHLO mail.enu.kz
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-mail.enu.kz
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-PIPELINING
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-SIZE 257286400
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-ETRN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-STARTTLS
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-ENHANCEDSTATUSCODES
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-8BITMIME
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250 DSN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: STARTTLS
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 220 2.0.0 Ready to start TLS
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: EHLO mail.enu.kz
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-mail.enu.kz
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-PIPELINING
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-SIZE 257286400
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-ETRN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-AUTH PLAIN LOGIN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-AUTH=PLAIN LOGIN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-ENHANCEDSTATUSCODES
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250-8BITMIME
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250 DSN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: AUTH LOGIN
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 334 VXNlcm5hbWU6
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: YWRtaW5AZW51Lmt6
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 334 UGFzc3dvcmQ6
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: ****** [12]
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 235 2.7.0 Authentication successful
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: MAIL FROM:<admin@enu.kz>
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250 2.1.0 Ok
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: RCPT TO:<all@enu.kz>
Mar 25 19:44:41 mail postfix/smtpd[21198]: A9F224091CA56: client=localhost[127.0.0.1], sasl_method=LOGIN, sasl_username=admin@enu.kz
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 250 2.1.5 Ok
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: DATA
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Recv: 354 End data with <CR><LF>.<CR><LF>
Mar 25 19:44:41 mail roundcube: <h4nho1p7> Send: MIME-Version: 1.0^M Content-Type: multipart/mixed;^M  boundary="=_26ba79b1018ddd4c412ac80cb96581cf"^M Date: Fri, 25 Mar 2016 19:44:41 +0600^M From: =?UTF-8?Q?=D0=90=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80?=^M  =?UTF-8?Q?=D0=B0=D1=82=D0=BE=D1=80?= <admin@enu.kz>^M To: =?UTF-8?Q?=D0=A0=D0=B0=D1=81=D1=81=D1=8B=D0=BB=D0=BA=D0=B0_-_=D0=95?=^M  =?UTF-8?Q?=D0=9D=D0=A3?= <all@enu.kz>^M Subject: =?UTF-8?Q?=D0=90=D2=9B=D0=BF=D0=B0=D1=80=D0=B0=D1=82_=D1=83?=^M  =?UTF-8?Q?=D0=BD=D0=B8=D0=B2=D0=B5=D1=80=D1=81=D0=B8=D1=82=D0=B5=D1=82_?=^M  =?UTF-8?Q?=D0=BE=D2=9B=D1=8B=D1=82=D1=83=D1=88=D1=8B=D0=BB=D0=B0=D1=80?=^M  =?UTF-8?Q?=D1=8B=D0=BD=D1=8B=D2=A3=2C_=D0=B4=D0=B5=D0=BF=D0=B0=D1=80?=^M  =?UTF-8?Q?=D1=82=D0=B0=D0=BC=D0=B5=D0=BD=D1=82_=D0=B4=D0=B8=D1=80=D0=B5?=^M  =?UTF-8?Q?=D0=BA=D1=82=D0=BE=D1=80=D0=BB=D0=B0=D1=80=D1=8B_=D0=BC=D0=B5?=^M  =?UTF-8?Q?=D0=BD_=D0=B1=D3=A9=D0=BB=D1=96=D0=BC_=D0=BC=D0=B5=D2=A3=D0=B3?=^M  =?UTF-8?Q?=D0=B5=D1=80=D1=83=D1=88=D1=96=D0=BB=D0=B5=D1
Mar 25 19:45:47 mail roundcube: <h4nho1p7> Send: mCi1XHKTPd7e6sme1KnfqesmljOIYXLaDNrj3CtEsGDakgs3s6T32tH1Jy9n^M SiDLpEhpin7v9rVeKnu/Ynv+5HlDR3Uke0KP/rR8L5g+lTMMaFVmyLQ9ZM8e2qnn7AMS6Bm25s3r^M V1Jz7KC0Of277TpzfWTrHgevXhuZ2nLZ/qvkpyW+19f1Jqw9LQWYY/eBGEHOLXrBhG6h/GcpaH9i^M 87JebRvuOZM5uffA0zdzZw7qc+bUloEDF6ybN/3Mzcy+X7e6mnObxZknNx+5lCOBbNy5nM7O7Evp^M 20/cyDo8v12XxfO+7bH/Qtb00dNObF7eu13DVYeuk3jvmmXNe/R3wpM35Vc+U7l/w5f6j68eOnHi^M HMpw5861qQMGJU9FvbvnL7icncuy2GPJM0MBC/jPixTwoAU8nD7F5irwL202zHn3L1WZ0kamprT4^M RcweamI1L7w1tuBGltW8cYse//eLH9BmZgLPEL778d7OpaArqmFPIrGEi8FDSNMxdB62We9EiUwM^M yiO2GJzcaTojRpuk105u6r3uFVuPom0ScFP21nPx4kW6imkgc2HK9Usa3zb+rPNt67Y6f5MSZEzq^M 8hU9kLbrMHZ52vxDV69nXtjce8DaWW1SOrTouWPFiMaVq7buMujwmlEtqlft03fKsjF90s+asG2T^M hnXuPZaMQ6tHeprVaY3r1GrXYUxG5oV+zVMo5+BBM6Z3HnnoisnZa8DaRZO+JSeHU0KKalyn48Wb^M WaP6da5a4dPhaWu71nq/9tffXDuxnWT1aqacv0lfAXh6aIfvqPIRPcdfuHG+f/OU+lVqpi0+QIdw^M eM3Uj95/c1Ta9EldGtr6x2TQywP2GKeN7kiFDe42lA5wxKBezGHymA6Du3cg/8Jx39Jqfu3ENh5l^M +eihHVt1mGgfw2kg2uZ8N73/wCEUtX/+N7SOn9g0cdn+K
Mar 25 19:45:47 mail roundcube: <h4nho1p7> Send: RSET
Mar 25 19:45:47 mail roundcube: <h4nho1p7> SMTP Error: Failed to send data. Failed to write to socket: unknown error in /usr/local/www/roundcube/program/lib/Roundcube/rcube.php on line 1714 (POST /mail/?_task=mail&_unlock=loading1458913530007&_lang=ru&_framed=1?_task=mail&_action=send)
Mar 25 19:45:47 mail roundcube: <h4nho1p7> Send: QUIT
Mar 25 19:46:06 mail postfix/cleanup[20737]: A9F224091CA56: message-id=<0138d2d4523327641a56c95a2f9f0b94@enu.kz>
Mar 25 19:46:06 mail postfix/smtpd[21198]: lost connection after DATA (139222 bytes) from localhost[127.0.0.1]
Mar 25 19:46:06 mail postfix/smtpd[21198]: disconnect from localhost[127.0.0.1]

10

Re: SMTP error: Failed to write to socket: unknown error

The log is not clear, no idea at all. sad

Could you please set 'debug_peer_list = 127.0.0.1' in /usr/local/etc/postfix/main.cf, restart postfix, then try again?

11

Re: SMTP error: Failed to write to socket: unknown error

ZhangHuangbin wrote:

The log is not clear, no idea at all. sad

Could you please set 'debug_peer_list = 127.0.0.1' in /usr/local/etc/postfix/main.cf, restart postfix, then try again?


Mar 27 20:51:21 mail postfix/smtpd[46951]: connect from localhost[127.0.0.1]
Mar 27 20:51:21 mail postfix/smtpd[46951]: smtp_stream_setup: maxtime=300 enable_deadline=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 220 mail.enu.kz ESMTP Postfix
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: EHLO mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: localhost: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: 127.0.0.1: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-PIPELINING
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-SIZE 257286400
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-ETRN
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-STARTTLS
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-ENHANCEDSTATUSCODES
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-8BITMIME
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250 DSN
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: STARTTLS
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 220 2.0.0 Ready to start TLS
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = seed
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr size = 32
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/tlsmgr: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/tlsmgr: wanted attribute: seed
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: seed
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: tJfWCzg6shbrIVYqw3UFMDPuMhmi09pKsyl81K/dgS4=
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/tlsmgr: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = tktkey
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr keyname = [data 0 bytes]
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/tlsmgr: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/tlsmgr: wanted attribute: keybuf
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: keybuf
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: w3X1shfkpQ+/dAASz3pow3vbQ4gNpki9KH6lVFKhrJuJQJphZBN9V7V881Gm2AvacPr3VgAAAAA=
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/tlsmgr: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_create: SASL service=smtp, realm=(null)
Mar 27 20:51:21 mail postfix/smtpd[46951]: name_mask: noanonymous
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: Connecting
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: VERSION?1?1
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: MECH?PLAIN?plaintext
Mar 27 20:51:21 mail postfix/smtpd[46951]: name_mask: plaintext
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: MECH?LOGIN?plaintext
Mar 27 20:51:21 mail postfix/smtpd[46951]: name_mask: plaintext
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: SPID?26276
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: CUID?1253184
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: COOKIE?028a190d3a5131ab52b1145d1bfd665c
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_connect: auth reply: DONE
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_mech_filter: keep mechanism: PLAIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_mech_filter: keep mechanism: LOGIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: EHLO mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: localhost: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: 127.0.0.1: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-PIPELINING
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-SIZE 257286400
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-ETRN
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-AUTH PLAIN LOGIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-AUTH=PLAIN LOGIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-ENHANCEDSTATUSCODES
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250-8BITMIME
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250 DSN
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: AUTH LOGIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_server_first: sasl_method LOGIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_handle_reply: auth reply: CONT?1?VXNlcm5hbWU6
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 334 VXNlcm5hbWU6
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: YWRtaW5AZW51Lmt6
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_handle_reply: auth reply: CONT?1?UGFzc3dvcmQ6
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 334 UGFzc3dvcmQ6
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: NTQzMjFhQQ==
Mar 27 20:51:21 mail postfix/smtpd[46951]: xsasl_dovecot_handle_reply: auth reply: OK?1?user=admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 235 2.7.0 Authentication successful
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: MAIL FROM:<admin@enu.kz>
Mar 27 20:51:21 mail postfix/smtpd[46951]: extract_addr: input: <admin@enu.kz>
Mar 27 20:51:21 mail postfix/smtpd[46951]: smtpd_check_addr: addr=admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: connect to subsystem private/rewrite
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = rewrite
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr rule = local
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr address = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: address
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: address
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: rewrite_clnt: local: admin@enu.kz -> admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = resolve
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr sender =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr address = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: transport
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: transport
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: dovecot
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: nexthop
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: nexthop
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: recipient
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: recipient
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 1024
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: resolve_clnt: `' -> `admin@enu.kz' -> transp=`dovecot' host=`enu.kz' rcpt=`admin@enu.kz' flags= class=virtual
Mar 27 20:51:21 mail postfix/smtpd[46951]: ctable_locate: install entry key admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: extract_addr: in: <admin@enu.kz>, result: admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = rewrite
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr rule = local
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr address = double-bounce
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: address
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: address
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: double-bounce@mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: rewrite_clnt: local: double-bounce -> double-bounce@mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: smtpd_check_rewrite: trying: permit_inet_interfaces
Mar 27 20:51:21 mail postfix/smtpd[46951]: permit_inet_interfaces: localhost 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: fsspace: .: block size 4096, blocks free 6642870544
Mar 27 20:51:21 mail postfix/smtpd[46951]: smtpd_check_queue: blocks 4096 avail 6642870544 min_free 0 msg_size_limit 257286400
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250 2.1.0 Ok
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: RCPT TO:<all@enu.kz>
Mar 27 20:51:21 mail postfix/smtpd[46951]: extract_addr: input: <all@enu.kz>
Mar 27 20:51:21 mail postfix/smtpd[46951]: smtpd_check_addr: addr=all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = rewrite
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr rule = local
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr address = all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: address
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: address
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: rewrite_clnt: local: all@enu.kz -> all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = resolve
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr sender =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr address = all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: transport
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: transport
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: dovecot
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: nexthop
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: nexthop
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: recipient
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: recipient
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: flags
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 1024
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/rewrite socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: resolve_clnt: `' -> `all@enu.kz' -> transp=`dovecot' host=`enu.kz' rcpt=`all@enu.kz' flags= class=virtual
Mar 27 20:51:21 mail postfix/smtpd[46951]: ctable_locate: install entry key all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: extract_addr: in: <all@enu.kz>, result: all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> START Client host RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks
Mar 27 20:51:21 mail postfix/smtpd[46951]: permit_mynetworks: localhost 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: permit_mynetworks: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks status=1
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> END Client host RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> START Helo command RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks
Mar 27 20:51:21 mail postfix/smtpd[46951]: permit_mynetworks: localhost 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: permit_mynetworks: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks status=1
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> END Helo command RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> START Sender address RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks
Mar 27 20:51:21 mail postfix/smtpd[46951]: permit_mynetworks: localhost 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: permit_mynetworks: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks status=1
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> END Sender address RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> CHECKING RECIPIENT MAPS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: ctable_locate: move existing entry key admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: recipient_canonical_maps: admin@enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.localdomain
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: enu.kz: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: recipient_canonical_maps: @enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: mail_addr_find: admin@enu.kz -> (not found)
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: canonical_maps: admin@enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.localdomain
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: enu.kz: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: canonical_maps: @enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: mail_addr_find: admin@enu.kz -> (not found)
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = lookup
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr table = ldap:/usr/local/etc/postfix/ldap/virtual_alias_maps.cf
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr flags = 16448
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr key = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 1
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: dict_proxy_lookup: table=ldap:/usr/local/etc/postfix/ldap/virtual_alias_maps.cf flags=lock|fold_fix key=admin@enu.kz -> status=1 result=
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = lookup
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr table = ldap:/usr/local/etc/postfix/ldap/virtual_group_maps.cf
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr flags = 16448
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr key = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 1
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: dict_proxy_lookup: table=ldap:/usr/local/etc/postfix/ldap/virtual_group_maps.cf flags=lock|fold_fix key=admin@enu.kz -> status=1 result=
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = lookup
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr table = ldap:/usr/local/etc/postfix/ldap/virtual_group_members_maps.cf
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr flags = 16448
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr key = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: dict_proxy_lookup: table=ldap:/usr/local/etc/postfix/ldap/virtual_group_members_maps.cf flags=lock|fold_fix key=admin@enu.kz -> status=0 result=admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: virtual_alias_maps: proxy:ldap:/usr/local/etc/postfix/ldap/virtual_group_members_maps.cf(0,lock|fold_fix): admin@enu.kz = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: mail_addr_find: admin@enu.kz -> admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> START Recipient address RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks
Mar 27 20:51:21 mail postfix/smtpd[46951]: permit_mynetworks: localhost 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: permit_mynetworks: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks status=1
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> END Recipient address RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> START Recipient address RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_unknown_sender_domain
Mar 27 20:51:21 mail postfix/smtpd[46951]: reject_unknown_address: admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: ctable_locate: leave existing entry key admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_unknown_sender_domain status=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_non_fqdn_sender
Mar 27 20:51:21 mail postfix/smtpd[46951]: reject_non_fqdn_address: admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_non_fqdn_sender status=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_non_fqdn_recipient
Mar 27 20:51:21 mail postfix/smtpd[46951]: reject_non_fqdn_address: all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_non_fqdn_recipient status=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_unlisted_recipient
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> CHECKING RECIPIENT MAPS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: ctable_locate: move existing entry key all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: recipient_canonical_maps: all@enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.localdomain
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: enu.kz: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: recipient_canonical_maps: @enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: mail_addr_find: all@enu.kz -> (not found)
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: canonical_maps: all@enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.localdomain
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_string: enu.kz ~? localhost.mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: enu.kz: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: canonical_maps: @enu.kz: not found
Mar 27 20:51:21 mail postfix/smtpd[46951]: mail_addr_find: all@enu.kz -> (not found)
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = lookup
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr table = ldap:/usr/local/etc/postfix/ldap/virtual_alias_maps.cf
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr flags = 16448
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr key = all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 1
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: dict_proxy_lookup: table=ldap:/usr/local/etc/postfix/ldap/virtual_alias_maps.cf flags=lock|fold_fix key=all@enu.kz -> status=1 result=
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = lookup
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr table = ldap:/usr/local/etc/postfix/ldap/virtual_group_maps.cf
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr flags = 16448
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr key = all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: status
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: value
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: abdylmanap_aa@enu.kz,aydargalieva_ng@enu.kz,aymurzieva_azh@enu.kz,alzhanova_bg@enu.kz,alibekova_ba@enu.kz,alimardanov_aa@enu.kz,alchikanov_mk@enu.kz,antonyuk_yus@enu.kz,aubakirova_ls@enu.kz,baygonusov_od@enu.kz,baymuratova_nb@enu.kz,baubekova_ks@enu.kz,bayadilova_na@enu.kz,bekbaulenov_eb@enu.kz,bekbauova_se@enu.kz,bekturganova_mg@enu.kz,borgekova_kb@enu.kz,borodavko_es@enu.kz,bulegenova_gk@enu.kz,galimova_az@enu.kz,guchko_is@enu.kz,dayrabaev_ae@enu.kz,daniyarova_m@enu.kz,dauletbekova_aa@enu.kz,dosanova_ae@enu.kz,dosmakhambetuly_g@enu.kz,duambekova_bk@enu.kz,duysekeev_zhm@enu.kz,ermagambetova_ab@enu.kz,eszhanov_st@enu.kz,alkozha_ra@enu.kz,zhayylganova_an@enu.kz,zhaksylykova_am@enu.kz,zhananova_kk@enu.kz,zhantlesova_zhb@enu.kz,zharaskhan_nzh@enu.kz,zhomartov_me@enu.kz,zhumabaeva_zht@enu.kz,zhumagulov_kk@enu.kz,zhumanalin_ts@enu.kz,zhurtbay_tk@enu.kz,izeeva_aa@enu.kz,imanbaeva_kk@enu.kz,isabaeva_sb@enu.kz,kabuldinov_ze@enu.kz,kargin_db@enu.kz,kasym
Mar 27 20:51:21 mail postfix/smtpd[46951]: private/proxymap socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: dict_proxy_lookup: table=ldap:/usr/local/etc/postfix/ldap/virtual_group_maps.cf flags=lock|fold_fix key=all@enu.kz -> status=0 result=abdylmanap_aa@enu.kz,aydargalieva_ng@enu.kz,aymurzieva_azh@enu.kz,alzhanova_bg@enu.kz,alibekova_ba@enu.kz,alimardanov_aa@enu.kz,alchikanov_mk@enu.kz,antonyuk_yus@enu.kz,aubakirova_ls@enu.kz,baygonusov_od@enu.kz,baymuratova_nb@enu.kz,baubekova_ks@enu.kz,bayadilova_na@enu.kz,bekbaulenov_eb@enu.kz,bekbauova_se@enu.kz,bekturganova_mg@enu.kz,borgekova_kb@enu.kz,borodavko_es@enu.kz,bulegenova_gk@enu.kz,galimova_az@enu.kz,guchko_is@enu.kz,dayrabaev_ae@enu.kz,daniyarova_m@enu.kz,dauletbekova_aa@enu.kz,dosanova_ae@enu.kz,dosmakhambetuly_g@enu.kz,duambekova_bk@enu.kz,duysekeev_zhm@enu.kz,ermagambetova_ab@enu.kz,eszhanov_st@enu.kz,alkozha_ra@enu.kz,zhayylganova_an@enu.kz,zhaksylykova_am@enu.kz,zhananova_kk@enu.kz,zhantlesova_zhb@enu.kz,zharaskhan_nzh@enu.kz,zhomartov_me@enu.kz,zhumabaeva_zht@enu.kz,zhumagulov_kk@enu.kz,zhumanalin_ts@enu.kz,zhurtba
Mar 27 20:51:21 mail postfix/smtpd[46951]: maps_find: virtual_alias_maps: proxy:ldap:/usr/local/etc/postfix/ldap/virtual_group_maps.cf(0,lock|fold_fix): all@enu.kz = abdylmanap_aa@enu.kz,aydargalieva_ng@enu.kz,aymurzieva_azh@enu.kz,alzhanova_bg@enu.kz,alibekova_ba@enu.kz,alimardanov_aa@enu.kz,alchikanov_mk@enu.kz,antonyuk_yus@enu.kz,aubakirova_ls@enu.kz,baygonusov_od@enu.kz,baymuratova_nb@enu.kz,baubekova_ks@enu.kz,bayadilova_na@enu.kz,bekbaulenov_eb@enu.kz,bekbauova_se@enu.kz,bekturganova_mg@enu.kz,borgekova_kb@enu.kz,borodavko_es@enu.kz,bulegenova_gk@enu.kz,galimova_az@enu.kz,guchko_is@enu.kz,dayrabaev_ae@enu.kz,daniyarova_m@enu.kz,dauletbekova_aa@enu.kz,dosanova_ae@enu.kz,dosmakhambetuly_g@enu.kz,duambekova_bk@enu.kz,duysekeev_zhm@enu.kz,ermagambetova_ab@enu.kz,eszhanov_st@enu.kz,alkozha_ra@enu.kz,zhayylganova_an@enu.kz,zhaksylykova_am@enu.kz,zhananova_kk@enu.kz,zhantlesova_zhb@enu.kz,zharaskhan_nzh@enu.kz,zhomartov_me@enu.kz,zhumabaeva_zht@enu.kz,zhumagulov_kk@enu.kz,zhumanalin_ts@enu.kz,zhurtbay_tk@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: mail_addr_find: all@enu.kz -> abdylmanap_aa@enu.kz,aydargalieva_ng@enu.kz,aymurzieva_azh@enu.kz,alzhanova_bg@enu.kz,alibekova_ba@enu.kz,alimardanov_aa@enu.kz,alchikanov_mk@enu.kz,antonyuk_yus@enu.kz,aubakirova_ls@enu.kz,baygonusov_od@enu.kz,baymuratova_nb@enu.kz,baubekova_ks@enu.kz,bayadilova_na@enu.kz,bekbaulenov_eb@enu.kz,bekbauova_se@enu.kz,bekturganova_mg@enu.kz,borgekova_kb@enu.kz,borodavko_es@enu.kz,bulegenova_gk@enu.kz,galimova_az@enu.kz,guchko_is@enu.kz,dayrabaev_ae@enu.kz,daniyarova_m@enu.kz,dauletbekova_aa@enu.kz,dosanova_ae@enu.kz,dosmakhambetuly_g@enu.kz,duambekova_bk@enu.kz,duysekeev_zhm@enu.kz,ermagambetova_ab@enu.kz,eszhanov_st@enu.kz,alkozha_ra@enu.kz,zhayylganova_an@enu.kz,zhaksylykova_am@enu.kz,zhananova_kk@enu.kz,zhantlesova_zhb@enu.kz,zharaskhan_nzh@enu.kz,zhomartov_me@enu.kz,zhumabaeva_zht@enu.kz,zhumagulov_kk@enu.kz,zhumanalin_ts@enu.kz,zhurtbay_tk@enu.kz,izeeva_aa@enu.kz,imanbaeva_kk@enu.kz,isabaeva_sb@enu.kz,kabuldinov_ze@enu.kz,kargin_db@enu.k
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_unlisted_recipient status=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=check_policy_service
Mar 27 20:51:21 mail postfix/smtpd[46951]: trying... [127.0.0.1]
Mar 27 20:51:21 mail postfix/smtpd[46951]: auto_clnt_open: connected to 127.0.0.1:7777
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr request = smtpd_access_policy
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr protocol_state = RCPT
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr protocol_name = ESMTP
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr client_address = 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr client_name = localhost
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr reverse_client_name = localhost
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr helo_name = mail.enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr sender = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr recipient = all@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr recipient_count = 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr queue_id =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr instance = b767.56f7f369.10c3e.0
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr size = 0
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr etrn_domain =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr stress =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr sasl_method = LOGIN
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr sasl_username = admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr sasl_sender =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr ccert_subject =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr ccert_issuer =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr ccert_fingerprint =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr ccert_pubkey_fingerprint =
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr encryption_protocol = TLSv1
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr encryption_cipher = ECDHE-RSA-AES256-SHA
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr encryption_keysize = 256
Mar 27 20:51:21 mail postfix/smtpd[46951]: 127.0.0.1:7777: wanted attribute: action
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: action
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: DUNNO
Mar 27 20:51:21 mail postfix/smtpd[46951]: 127.0.0.1:7777: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: check_table_result: inet:127.0.0.1:7777 DUNNO policy query
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=check_policy_service status=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks
Mar 27 20:51:21 mail postfix/smtpd[46951]: permit_mynetworks: localhost 127.0.0.1
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:51:21 mail postfix/smtpd[46951]: match_list_match: permit_mynetworks: no match
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=permit_mynetworks status=1
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> END Recipient address RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: before input_transp_cleanup: cleanup flags = enable_header_body_filter enable_automatic_bcc enable_address_mapping enable_milters
Mar 27 20:51:21 mail postfix/smtpd[46951]: after input_transp_cleanup: cleanup flags = enable_header_body_filter enable_automatic_bcc enable_address_mapping
Mar 27 20:51:21 mail postfix/smtpd[46951]: connect to subsystem public/cleanup
Mar 27 20:51:21 mail postfix/smtpd[46951]: public/cleanup socket: wanted attribute: queue_id
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: queue_id
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute value: 38E924091CAC5
Mar 27 20:51:21 mail postfix/smtpd[46951]: public/cleanup socket: wanted attribute: (list terminator)
Mar 27 20:51:21 mail postfix/smtpd[46951]: input attribute name: (end)
Mar 27 20:51:21 mail postfix/smtpd[46951]: send attr flags = 178
Mar 27 20:51:21 mail postfix/smtpd[46951]: 38E924091CAC5: client=localhost[127.0.0.1], sasl_method=LOGIN, sasl_username=admin@enu.kz
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 250 2.1.5 Ok
Mar 27 20:51:21 mail postfix/smtpd[46951]: watchdog_pat: 0x802c1e770
Mar 27 20:51:21 mail postfix/smtpd[46951]: < localhost[127.0.0.1]: DATA
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> START Data command RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_unauth_pipelining
Mar 27 20:51:21 mail postfix/smtpd[46951]: reject_unauth_pipelining: DATA
Mar 27 20:51:21 mail postfix/smtpd[46951]: generic_checks: name=reject_unauth_pipelining status=0
Mar 27 20:51:21 mail postfix/smtpd[46951]: >>> END Data command RESTRICTIONS <<<
Mar 27 20:51:21 mail postfix/smtpd[46951]: > localhost[127.0.0.1]: 354 End data with <CR><LF>.<CR><LF>Mar 27 20:52:27 mail roundcube: <38grhh31> SMTP Error: Failed to send data. Failed to write to socket: unknown error in /usr/local/www/roundcube/program/lib/Roundcube/rcube.php on line 1714 (POST /mail/?_task=mail&_unlock=loading1459090332248&_lang=ru&_framed=1?_task=mail&_action=send)
Mar 27 20:52:45 mail postfix/cleanup[46956]: 38E924091CAC5: message-id=<0138d2d4523327641a56c95a2f9f0b94@enu.kz>
Mar 27 20:52:45 mail postfix/smtpd[46951]: smtp_get: EOF
Mar 27 20:52:45 mail postfix/smtpd[46951]: match_hostname: localhost ~? 127.0.0.0/8
Mar 27 20:52:45 mail postfix/smtpd[46951]: match_hostaddr: 127.0.0.1 ~? 127.0.0.0/8
Mar 27 20:52:45 mail postfix/smtpd[46951]: lost connection after DATA (139222 bytes) from localhost[127.0.0.1]
Mar 27 20:52:45 mail postfix/smtpd[46951]: disconnect from localhost[127.0.0.1]

12

Re: SMTP error: Failed to write to socket: unknown error

No idea at all, sorry.

i suggest posting to Postfix mailing list to get some help:
http://www.postfix.org/lists.html