On Wed, Feb 11, 2009 at 12:02 PM, Dieter Plaetinck <dieter@plaetinck.be> wrote:

On Wed, 11 Feb 2009 11:04:09 -0600 Aaron Griffin <aaronmgriffin@gmail.com> wrote:

...

Hello all, I am writing to inform you that I have changed all the Arch lists to reject HTML formatted email. Please send messages in plain text only.

Note: This is true of all lists, but I am only sending this message to the higher trafficked lists.

Cheers, Aaron

Any specific reason? afaik html emails are 100% backwards compatible, eg those who don't want them can see the txt variant, no?

That is only if you client also sends a text variant in a multipart mime encoding. I believe mailman may still accept those and expand the text portion. To quote the mailman docs: ---------- After this initial filtering, any multipart attachments that are empty are removed. If the outer message is left empty after this filtering, then the whole message is discarded. Then, each multipart/alternative section will be replaced by just the first alternative that is non-empty after filtering if collapse_alternatives is enabled. ---------- Allowed mimetypes: multipart/mixed multipart/alternative message/rfc822 text/plain But to answer the "reason" part - we get periodic spam on these lists and the only ones that seem to sneak through are HTML. That's where the idea came from, so I asked the rest of the devs about blocking html mail and got an emphatic "please do it!" from all of them - thus it was done.