Input Warden Antispam & Virus Protection Extension for Plesk

[papahausa]

@papahausa usually that means that your database credentials are corrupted. You can try resetting them with the command:

// reset the Amavis database credentials
warden --task=contentfilter:contentfilter --default=yes --reload=yes

// reset the SpamAssassin learning database credentials
warden --task=antispam:learning --default=yes --reload

After you reset the credentials you can to some manual training from the command line to see if its working correctly:

How can I perform Bayes training from the Warden command line interface? - Knowledgebase - Danami

done.
i hope this solution can help for other.
@danami Thanks.