Applicable to:
- Plesk Onyx for Linux
Symptoms
Mail delivery does not work periodically. The following messages can be found in /var/log/maillog:
CONFIG_TEXT: hostname postfix/smtpd[2177845]: warning: read TCP map reply from 127.0.0.1:12346: unexpected EOF (Connection timed out)
hostname postfix/smtpd[2177845]: warning: read TCP map reply from 127.0.0.1:12346: unexpected EOF (Connection timed out)
hostname postfix/smtpd[2177845]: warning: tcp:127.0.0.1:12346 lookup error for "john.doe1@example.com"
hostname postfix/smtpd[2177845]: NOQUEUE: reject: RCPT from mailexample.com[203.0.113.2]: 451 4.3.0 <john.doe1@example.com>: Temporary lookup failure; from=<john.doe2@example2.com> to=<john.doe1@example.com> proto=ESMTP helo=<mail.example.com>
hostname postfix/smtpd[2177845]: lost connection after DATA from mail.example.com[203.0.113.2]
hostname postfix/smtpd[2177845]: disconnect from mail.example.com[203.0.113.2]
Cause
Not clear. Temporary Postfix or SRS (Sender Rewriting Scheme) issue.
Resolution
- Connect to the server via SSH;
- Check the
postfix-srsline in/etc/postfix/master.cfconfiguration file. The correct output should be as follows:# grep postfix-srs /etc/postfix/master.cf
If it is different, correct it and restart Postfix:
127.0.0.1:12346 inet n n n - - spawn user=popuser:popuser argv=/usr/lib/plesk-9.0/postfix-srs# cp -p /etc/postfix/master.cf{,.bak}
# sed -i '/postfix-srs/c\127.0.0.1:12346 inet n n n - - spawn user=popuser:popuser argv=\/usr\/lib\/plesk-9.0\/postfix-srs' /etc/postfix/master.cf
# service postfix restart - If the steps above do not help or the configuration is correct, try to temporary disable and then re-enable SRS back according to the following article: How to turn off Sender Rewriting Scheme support?
Comments
4 comments
My server just started getting this error.
Restarting the service seems to get it stable for 5 minutes or so.
The output matches the above. Adding the -s as stated in the turning off SRS thread has no impact on whether it occurs or not.
Any other suggestions?
@John
Does your server use CentOS? If so, you may also check SELinux (https://support.plesk.com/hc/en-us/articles/360001677533 or https://support.plesk.com/hc/en-us/articles/360003479954-Unable-to-send-and-email-in-Plesk-on-server-with-SELinux-enabled-Unable-to-open-file-var-lib-plesk-mail-srs-secret-Permission-denied)
Yes CentOS , SElinux is diabled
@John
Then it is needed to investigate the issue thoroughly. Please submit a support request using your available option.
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