Unable to send an email: connect to Milter service unix:/var/spool/postfix/ctmilter/ctmilter.sock: No such file or directory

Created:

2016-12-12 03:41:39 UTC

Modified:

2017-08-08 13:18:46 UTC

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Unable to send an email: connect to Milter service unix:/var/spool/postfix/ctmilter/ctmilter.sock: No such file or directory

Applicable to:

  • Plesk 12.5 for Linux

Symptoms

Mail server is not sending emails. The following messages can be found in /var/log/maillog :

postfix/cleanup[16771]: warning: connect to Milter service unix:/var/spool/postfix/ctmilter/ctmilter.sock: No such file or directory
postfix/cleanup[16350]: warning: connect to Milter service unix:/var/spool/postfix/ctmilter/ctmilter.sock: No such file or directory

Cause

Postfix is not configured correctly. Misconfiguration in /etc/postfix/main.cf file.

Resolution

Modify /etc/postfix/main.cf file so that smtpd_milters parameter is as follows:

smtpd_milters = , inet:127.0.0.1:12768

Additional information

#213415349 Unable to send/recive mail with SMTP Error: Milter service unix:/ctmilter/ctmilter.sock: No such file or directory

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