[Mailman-Users] rejecting messages with any HTML

Hi, I run several mailing lists over at lists.zx2c4.com using mailman 2.1.30rc1. I would like to reject incoming messages that have any HTML parts in them at all. Or, perhaps, I'd like to whitelist a few different mimetypes, and reject incoming messages with parts that don't match. I noticed that

Re: [Mailman-Users] rejecting messages with any HTML

On March 12, 2020 1:11:28 AM GMT+00:00, "Jason A. Donenfeld" wrote: >Hi, > >I run several mailing lists over at lists.zx2c4.com using mailman >2.1.30rc1. I would like to reject incoming messages that have any HTML >parts in them at all. Or, perhaps, I'd like to whitelist a few >different mimetype