I see, I thought I had once managed to get HTML mail to project@, I recently had to write one HTML e-mail and forgot to change the seeings back, thx! -- Best regards / S pozdravem, BSc. Mark Stopka, BBA Managing Partner (at) PERLUR Group mobile: +420 704 373 561 website: www.perlur.cloud -- Best regards / S pozdravem, BSc. Mark Stopka, BBA Managing Partner (at) PERLUR Group mobile: +420 704 373 561 website: www.perlur.cloud On Tue, Dec 15, 2020 at 8:46 AM Bernhard M. Wiedemann <bernhardout@lsmod.de> wrote:

On 15/12/2020 08.07, Mark Stopka wrote:

...

Header "No, score=0.0 required=5.0 tests=HTML_MESSAGE, ..." matched a header rule

I think, we have long rejected HTML mails on our MLs because of the security risks.

The easiest way out is to send mails as plain text instead. E.g. thunderbird Preferences => Configure text format behaviour => Send Options