On Fri, 14 Jul 2023, Brian Spraker via Exim-users wrote:
Having a lot of new spam get through to the servers over the past
few weeks. I am noticing in the Exim logs and also in the email
headers that the "Return-Path" is empty. Is there a suitable way to
block any emails that have empty return-paths and would this cause
any other potential problems like mail failure notifications not
getting through?
Are you receiving these messages directly, or as back-scatter ?
I agree with Evgeniyy:
you should not block email because it comes from <>.
--
Andrew C. Aitchison Kendal, UK
[email protected]
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