==== Required information ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- Related log if you're reporting an issue:
====

The iRedMail version is:
0.0.6 MySQL version.

Server:
Ubuntu 16, Apache

mail.log file:

Mar 15 13:29:41 ip-172-31-9-68 postfix/submission/smtpd[14951]: connect from mail.geekmeteor.com[127.0.0.1]
Mar 15 13:29:41 ip-172-31-9-68 postfix/submission/smtpd[14951]: Anonymous TLS connection established from mail.geekmeteor.com[127.0.0.1]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Mar 15 13:29:41 ip-172-31-9-68 postfix/submission/smtpd[14951]: warning: connect to 127.0.0.1:7777: Connection refused
Mar 15 13:29:41 ip-172-31-9-68 postfix/submission/smtpd[14951]: warning: problem talking to server 127.0.0.1:7777: Connection refused
Mar 15 13:29:42 ip-172-31-9-68 postfix/submission/smtpd[14951]: warning: connect to 127.0.0.1:7777: Connection refused
Mar 15 13:29:42 ip-172-31-9-68 postfix/submission/smtpd[14951]: warning: problem talking to server 127.0.0.1:7777: Connection refused
Mar 15 13:29:42 ip-172-31-9-68 postfix/submission/smtpd[14951]: NOQUEUE: reject: RCPT from mail.geekmeteor.com[127.0.0.1]: 451 4.3.5 <me@joshfolgado.com>: Recipient address rejected: Server configuration problem; from=<us@geekmeteor.com$
Mar 15 13:29:42 ip-172-31-9-68 roundcube: ERROR: Invalid response code received from server (451)
Mar 15 13:29:42 ip-172-31-9-68 roundcube: <e3jsqcbf> SMTP Error: Failed to add recipient 'me@joshfolgado.com'. 4.3.5 <me@joshfolgado.com>: Recipient address rejected: Server configuration problem (Code: 451) in /opt/www/roundcubemail-1.$
Mar 15 13:29:42 ip-172-31-9-68 postfix/submission/smtpd[14951]: disconnect from mail.geekmeteor.com[127.0.0.1] ehlo=2 starttls=1 auth=1 mail=1 rcpt=0/1 rset=1 quit=1 commands=7/8
Mar 15 13:31:40 ip-172-31-9-68 postfix/pickup[14941]: 2490CC1EE4: uid=0 from=<root@mail.geekmeteor.com>
Mar 15 13:31:40 ip-172-31-9-68 postfix/cleanup[14987]: 2490CC1EE4: message-id=<20170315133140.2490CC1EE4@mail.geekmeteor.com>
Mar 15 13:31:40 ip-172-31-9-68 postfix/qmgr[14942]: 2490CC1EE4: from=<root@mail.geekmeteor.com>, size=401, nrcpt=1 (queue active)
Mar 15 13:31:40 ip-172-31-9-68 postfix/10025/smtpd[14994]: connect from mail.geekmeteor.com[127.0.0.1]
Mar 15 13:31:40 ip-172-31-9-68 postfix/10025/smtpd[14994]: 3FA4AC1F16: client=mail.geekmeteor.com[127.0.0.1]
Mar 15 13:31:40 ip-172-31-9-68 postfix/cleanup[14987]: 3FA4AC1F16: message-id=<20170315133140.2490CC1EE4@mail.geekmeteor.com>
Mar 15 13:31:40 ip-172-31-9-68 postfix/qmgr[14942]: 3FA4AC1F16: from=<root@mail.geekmeteor.com>, size=807, nrcpt=1 (queue active)
Mar 15 13:31:40 ip-172-31-9-68 amavis[8670]: (08670-02) Passed CLEAN {RelayedOpenRelay}, [127.0.0.1] <root@mail.geekmeteor.com> -> <me@joshfolgado.com>, Message-ID: <20170315133140.2490CC1EE4@mail.geekmeteor.com>, mail_id: eUatacORo_1z,$
Mar 15 13:31:40 ip-172-31-9-68 postfix/10025/smtpd[14994]: disconnect from mail.geekmeteor.com[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Mar 15 13:31:40 ip-172-31-9-68 postfix/smtp-amavis/smtp[14991]: 2490CC1EE4: to=<me@joshfolgado.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.14, delays=0.03/0.01/0/0.1, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025$
Mar 15 13:31:40 ip-172-31-9-68 postfix/qmgr[14942]: 2490CC1EE4: removed
Mar 15 13:31:40 ip-172-31-9-68 postfix/smtp[14998]: connect to aspmx.l.google.com[2607:f8b0:400e:c04::1a]:25: Network is unreachable
Mar 15 13:31:40 ip-172-31-9-68 postfix/smtp[14998]: Untrusted TLS connection established to aspmx.l.google.com[173.194.203.26]:25: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Mar 15 13:31:40 ip-172-31-9-68 postfix/smtp[14998]: 3FA4AC1F16: to=<me@joshfolgado.com>, relay=aspmx.l.google.com[173.194.203.26]:25, delay=0.64, delays=0.01/0.01/0.33/0.29, dsn=2.0.0, status=sent (250 2.0.0 OK 1489584700 u59si2131963pl$
Mar 15 13:31:40 ip-172-31-9-68 postfix/qmgr[14942]: 3FA4AC1F16: removed

I have gone through the forum, googled available posts and I'm stuck.

I'm sure its some setting that will open the sending and receiving emails.

To test that Postfix was handling sending of emails I sent one via terminal to another email address. Check and the email was received by the external email address.

Can someone advise?

Thanks