I just installed Mailman3 on my Ubuntu 20.04 LTS box. I could swear I did everything correctly, but when I run exim -bt to test for a list request address it says no such user.
Here's the output. Any ideas are helpful! root@jupiter:~# mailman create testl...@newideatest.site /usr/lib/python3/dist-packages/pymysql/cursors.py:170: Warning: (3719, "'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.") result = self._query(query) /usr/lib/python3/dist-packages/pymysql/cursors.py:170: Warning: (1300, "Invalid utf8 character string: '80055D'") result = self._query(query) Created mailing list: testl...@newideatest.site root@jupiter:~# exim -bt testl...@newideatest.site testl...@newideatest.site is undeliverable: No such person at this address -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/