Topic: timed out while receiving the initial server greeting
======== Required information ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version: Debian 8.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): Mysql
- Web server (Apache or Nginx): apache
- Manage mail accounts with iRedAdmin-Pro? iRedAdmin but no pro (iRedMail-0.9.4)
- Related log if you're reporting an issue:
====
Hello,
I have 0.9.4 version iRedMail on my server(debian 8.4)
I have issue when I try send to my server mail from one account.
When I send mail from this domain to my I got this mail :
Subject: Undelivered Mail Returned to Sender
This is the mail system at host sender.server.com.
I'm sorry to have to inform you that your message could not be delivered to
one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can delete your own
text from the attached returned message.
The mail system
<witold@recipient.server.com>: conversation with recipient.server.com[ip_this_server]
timed out while receiving the initial server greeting
Final-Recipient: rfc822; witold@recipient.server.com
Original-Recipient: rfc822;witold@recipient.server.com
Action: failed
Status: 4.4.2
Diagnostic-Code: X-Postfix; conversation with recipient.server.com[ip_this_server]
timed out while receiving the initial server greeting
relate this information I find in google this suggestions:
1)
echo 0 > /proc/sys/net/ipv4/tcp_window_scaling
and restart postfix
2)
echo smtp_connect_timeout = 120s >> /etc/postfix/main.cf
and restart postfix
I do both this changes on my server but I still don't got mail from this account.
What I should check on my site ? In /var/log/mail* I don't have nothing about mail from this address...
This is issue on my site or on server who sent mail ?
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