Question How to blackhole emails on a domain

MHC_1

Regular Pleskian
Server operating system version
Alma Linux 9.7
Plesk version and microupdate number
Plesk Obsidian 18.0.78 Update #4
Previously we could drop emails coming in a domain into "blackhole", whereby the email is received and immediately silently deleted under certain conditions.

But I cant see how to do this with Plesk;


Screenshot from 2026-06-26 19-26-32.png


We want mail for non-existent users to be blackholed. Reject simply fills the Host Mailqueue with return to sender which fail because thery're ALWAYS spam mails from emails that don't exist or don't except rejects, to mailboxes on the server that don't exist.

How do we set plesk / Dovecot to silently dump and remove emails to mailboxes that don't exist.

This can be domain specific or server wide .

Cheers
 
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