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Posted to users@spamassassin.apache.org by John Hardin <jh...@impsec.org> on 2018/12/01 03:23:07 UTC

Re: spoofing mail

On Fri, 30 Nov 2018, Rupert Gallagher wrote:

> Although the RFC allows muas not to include the mid, the same RFC does 
> not mandate mtas to accept them. Since 100% of such emails on our 
> records are spam, then we reject them upfront.

...and if you're adopting that policy, the configure your MTA to reject 
messages missing a Message-ID during the SMTP phase before it ever touches 
SA.

-- 
  John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
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