[Users] Message doesn't conform to MIME standard. It may render wrongly.

[Thomas Groman]

On Thu, 6 Jan 2022 10:02:38 -0500
Pierre Fortin <pf at pfortin.com> wrote:

> Hi,
> 
> Lately, I'm seeing a growing spam which triggers CM to display:
> "Message doesn't conform to MIME standard. It may render wrongly."
> There hasn't been a single valid message with this warning; alll spam.
> 
> Is there a way to filter these? Guessing this message is triggered
> during display after some serious parsing of the content.


I was trying to figure out the same problem. Cept I was trying to
figure out how to configure rspamd to reject html-mime-only or mail
that doesn't have a plaintext mine with a specific reason message.
Unfortunately, nobody on the rspamd-users list knows how to do this
either.
-- 
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