Knowledgebase

Mail is not being moved to the users spam folder even though the policy is set to move to spam folder.

Policy Spam Action

First double check that the policy spam action is set to move. Remember that spam policies are hierarchical meaning that any child policy at the mailbox or domain level can override the default server level. See here for more information.

Restart the Dovecot service

The dovecot service is what moves the spam messages to the Spam folder. Sometimes restarting the dovecot service can fix things.

systemctl restart dovecot

Plesk Email Security

Plesk Email Security can sometimes leave old sieve filters which can interfere with Warden's own sieve filters. The sieve filters that Warden uses are always named .warden.sieve. You can check for old sieve filters using the command:

find /var/qmail/mailnames -name ".dovecot.sieve"

Then you can view the contents of each sieve filter to see if they are from Plesk Email Security and delete them.