Zimbra Troubleshoot: Postfix/Postdrop Permission Denied
I was working on upgrading Zimbra version. After upgrading the Zimbra package, I found an error like below while checking Zimbra log. Error: Apr 29 21:34:46 hmail postfix/postdrop[24236]: warning: mail_queue_enter: create file maildrop/808948.24236: Permission denied Solution: I solved it by executing below commands. zimbra@mail:~$ postfix stop /postfix-script: stopping the Postfix mail system zimbra@mail:~$ killall postdrop zimbra@mail:~$ postfix start /postfix-script: starting the Postfix mail system I again checked the Zimbra log and error has been disappeared.