Postfix Catchall – Avoid Spam

Pedro Lobito asked:

I’ve 2 accounts on my CentOS server configured with catchall email accounts. Lately I’ve been receiving bounced emails with virus that were supposedly sent from my server account, Ex: somestragename@mydomain.com. The postfix mail server is configured to allow only authenticated users to send mail but I’m wondering if the emails were sent from my server.

How can I avoid this bounced emails?

My answer:


Don’t use catchall email accounts.


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