On 19/08/2023 16:29, Victor Ustugov via Exim-users wrote:
But this won't work if there is no Message-ID header in the original email.
You can safely block any external-source messages lacking a Message-ID header (local ones, where you're being an MSA, not so; some MUAs are dumb and the MSA has to fix then up. Exim does that). RFC 5322 only lists this as a SHOULD (section 3.8.4) - but I see it as spamsign. -- Cheers, Jeremy -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
