On 4/21/22 04:53, tlhackque via Mailman-users wrote:
Note that MailMan is encapsulating a multipart/signed message in a multipart/mixed in order to append it's footer, and reports that it removed the signature part of the multipart/signed. This makes the signed message format invalid. So at least, MM3 needs to handle signed messages better: either include the signature or remove the signature headers (an unwrapping exercise to convert the message to unsigned)... Note that this can be recursive where a signed message contains a message/rfc822 part that contains a signed message, that....
This was an issue with Mailman's content filtering for the mailmanusers@mailman3.org list. Pass types was:
multipart message/rfc822 text application/pgp-signature
So the application/x-pkcs7-signature part was removed. I have just updated Pass types to:
multipart message/rfc822 text application/pgp-signature application/x-pkcs7-signature
to not remove application/x-pkcs7-signature parts going forward.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan