In article <871rmukg4q....@wedjat.horus-it.com> you write: >* John Levine via mailop: > >> Mailing lists have only been adding subject tags since the 1980s. > >I do not wish to delve into whether these tags are useful or not, but >rewriting subjects or bodies invalidate existing DKIM signatures.
Yes, we knew that 15 years ago when we published the DKIM specs. >I recommend using separate domains, or subdomains, for regular business >and for mailing lists, combined with separate DMARC policies, e.g. >'quarantine' for example.org and 'none' for mlists.example.org. I agree that it is not a great idea to mix mailing lists and other correspondence in the same domain. It is equally a bad idea to mix mailboxes used by actual people and role addresses that send bulk mail. _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop