[webmin-l] Usermin: Failed to lock mail file /var/mail/inbox after trying for 5 minutes, due to a POP3 lock file

[<us...@tr...>]

Hello,

I included a mboxfile with server-sided filtered spam mails via the 
"managed folder" functionality of Usermin. By help of procmail and 
Spamassassig junk mails are moved into that spam mboxfile.
The spam messages in that mbox file are listed correctly! That is what I 
want Usermin use for: To check the serversided filtered spam messages in 
order not to miss any important false positives!

Problem: Trying to "move/copy" a message (false positive) from those 
spam messages to the "inbox" (i. e. a false positive) always results in 
following error message:

*Failed to move mail : Failed to lock mail file /var/mail/inbox after 
trying for 5 minutes, due to a POP3 lock file.*

Simultaneously being locked in via SFTP I can see that Usermin obviously 
succeeds in creating an inbox.lock file where the inbox-file is located. 
But why does the error message mentioned above appear?

Any ideas how to solve the problem? Maybe the problem has to do with the 
permissions/ownership of the generated inbox.lock (660 and Owner: 
username:mail).

Thanks and best regards
userminitestit



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