[Rspamd-Users] Block emails with Chinese and Cyrillic characters in the subject

[Steve Witten]

On Wed, Aug 6, 2025 at 9:14 AM G.W. Haywood <rspamd at jubileegroup.co.uk>
wrote:

<snip />

Note that Steve's suggestion does not look specifically at the Subject
> header, but it's a perfectly valid approach and will likely catch more
> than something which is limited to matching the Subject header.
>

Yes...that was the point...  I don't want to see ANY MAIL using an
unsupported character set anywhere within the message.

The map is used in rules as a general content filter.  That's why I
included the (example) regexps about Norton, M(a)?cAfee, Office, etc. in a
previous message...to demonstrate the generality of the approach.

As always, YMMV..

<snip />