3 articles on this topic
If Zimbra cannot send or receive mail while webmail, POP, and IMAP work normally, check the log for "fatal: Queue report unavailable - mail system is down", as in the example zimbra@zm:~$
You can check the performance of incoming and outgoing email on Zimbra mail by examining its delivery logs, allowing you to analyze system performance and identify which parts take particularly long…
Postfix is a highly flexible MTA. This article explains how to restrict selected users to sending mail only to specified domains or within the company.
