1

Topic: The external mails are slow

==== Required information ====
- iRedMail version (check /etc/iredmail-release):
0.9.5-1 
- Linux/BSD distribution name and version:
Ubuntu 16.04.1
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
LDAP
- Web server (Apache or Nginx):
Apache
- Manage mail accounts with iRedAdmin-Pro?
No
- Related log if you're reporting an issue:
====

Hi Mr. Zhang Huangbin, I just installed the new version but, ¿why is so slow send and receive external mails? these mails sometimes take 5 to 30 minutes to delivered

Regards,
Great work as always!

----

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2

Re: The external mails are slow

Maybe greylist works?
Check mail.log ..
There can be a record as:
Jul 25 12:08:43 mymailserver postfix/smtpd[10064]: NOQUEUE: reject: RCPT from unknown[119.30.3
8.61]: 451 4.7.1 <internal@mail.addr>: Recipient address rejected: Intentional policy rejec
tion, please try again later; from=<external@mail.addr> to=<internal@mail.addr> proto=E
SMTP helo=<[119.30.38.61]>

3

Re: The external mails are slow

As @zh mentioned, it's caused by greylisting service. For more details, check this tutorial:
http://www.iredmail.org/docs/manage.iredapd.html