Question Incoming mail go straight to the trash

[Stephen_Stephen]

Server operating system version

AlmaLinux 8.10

Plesk version and microupdate number

18.0.68

On plesk I have a number of domain all working fine, except one of them recently the the mails going out are either bounced back and the incoming mail go straight into the trash

Nothing has been change in mail server setting What could be the issue?

info:
[Plesk Obsidian v18.0.68]
AlmaLinux 8.10
Roundcube Webmail 1.6.10
cloudflare CDN for webmail

 

[Raul A.]

Check the headers of emails that are delivered straight to the Trash. It can be a mail filter on the server, check Roundcube settings, or an email client filter.

In the headers, you will find the queueid of the email and you can see where it was delivereted by the mail service by searching the queueid in the maillog.

 

[Stephen_Stephen]

Thanks Looking at the header there is no apparent issue that I can see why they end up in trash. Especially compared to mails received from other domain.

SpamAssassin 3.4.6 is enabled all it does is to mark [***SPAM***] in subject it must not be related to this issue as all other domain email does not have such symptoms

Also I forgot to mention all old mails in the inbox are gone like they have been permanently deleted by some one and this could not have been affected by the mail filter.

I can't see queueid which section would it be in the header

 

[enerspace]

There is a difference between moving to the trash and deleting the inbox. This also happens, for example, when retrieving the mailbox via POP3.