==== Required information ====
- iRedMail version (check /etc/iredmail-release):  0.9.6
- Linux/BSD distribution name and version: Ubuntu
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):Nginx
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
Hi everyone,

my email server has a problem: i can't receive email from customer.
my log for this:

Jun 14 12:28:48 mail postfix/10025/smtpd[6849]: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 commands=4
Jun 14 12:28:54 mail postfix/postscreen[6900]: CONNECT from [54.199.133.183]:50505 to [128.199.244.13]:25
Jun 14 12:28:54 mail postfix/postscreen[6900]: WHITELISTED [54.199.133.183]:50505
Jun 14 12:28:54 mail postfix/smtpd[6903]: connect from smtp.track.i-mo.com[54.199.133.183]
Jun 14 12:28:55 mail postfix/smtpd[6903]: disconnect from smtp.track.i-mo.com[54.199.133.183] ehlo=1 mail=0/1 rcpt=0/4 data=0/1 rset=0/1 quit=1 commands=2/9

Please help me solve it.

Thank you all!