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E-mails are not passing through the DLP Gateway configured as Mail Transfer Agent (MTA) Technical Level
Symptoms
  • E-mails are not passing through the DLP Gateway configured as Mail Transfer Agent (MTA).

  • Output of the "/opt/postfix/usr/sbin/postqueue -c /opt/postfix/etc/postfix/ -p" command on the Security Gateway shows that e-mails are stuck in Postfix queue.

  • Running Postfix under debug shows the following error in the /var/log/maillog* files:
    mkdir: cannot create directory `/opt/postfix/var/lib/postfix': No such file or directory

Solution
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