I am using Virtualmin, My email are not working fine server not receive any emails and all bounced email trap in email queue. When I Try to "Login to Usermin" it show following error. Failed to save mailbox : Failed to open PID file
locked by HopelessN00b Apr 3 at 13:39
This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. This question and its answers are frozen and cannot be changed. More info: help center.