On 5/18/21 4:14 PM, McGuire, Tommy M. (MSFC-IS90)[EAST2] via Mailman-Users wrote: > We recently installed Mailman 3 to replace an existing Mailman 2 installation > with a large number of lists and users. I'm now seeing a number of users on > specific lists whose posts result in: > > May 18 14:25:41 2021 (112570) DISCARD: > <by5pr09mb52987327de1aa2c199dc4dc1d4...@by5pr09mb5298.example.org>; ['The > message has no valid senders'] > > The post have sender addresses, which are members or owners of the lists, and > as far as I can tell, the users are valid. Can anyone shed any light on why a > post wouldn't have a valid sender?
This discard is saying that there was no syntactically valid email address found in any of the places it looks. These are defined by the mailman setting `sender_headers`, the default for which is `from from_ reply-to sender` which means - the From: header - the unix from or envelope sender - the Reply-To: header - the Sender: header Have you set ``` [mailman] sender_headers: ... ``` in mailman.cfg?, and if so, to what? -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list -- mailman-users@python.org To unsubscribe send an email to mailman-users-le...@python.org https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/ https://mail.python.org/archives/list/mailman-users@python.org/