Emails from same domain goes to trash

[Erik G]

Hi, so I have this very wierd problem that I can't find a solution to.
It started a while ago when a user ([email protected]) noticed that e-mails from another user ([email protected]) were going to trash. The wierd part is that this happens only between these two specific users when [email protected] sends an e-mail to [email protected] and NOT vice-versa. I tried placing email filters that would specifically deliver email from user2 to user1's inbox but it didnt change anything. Another thing to note is that when I manually move the e-mails to inbox, after a while they are moved automatically to trash. I'd appreciate some help as I don't have any idea anymore.

Thanks in advance,

 

[cPRex]

Hey there! I think the last statement is the key to this issue:

Another thing to note is that when I manually move the e-mails to inbox, after a while they are moved automatically to trash.

As you know, that isn't normal behavior, and not something that would happen on the server side. Is it possible the user has a mail client such as Outlook or Thunderbird that is connecting to the server and causing this behavior, possibly through a local filtering rule in the client?

You could confirm this doesn't happen during the initial message delivery by checking the logs in /var/log/exim_mainlog. If there were any filters being used on the message there you'd see either "R=central_filter" or "R=system_filter" in the log entry for that message.