I was missing this step from: https://help.ubuntu.com/community/Mailman#Postfix_Configuration
Associate the domain lists.example.com<http://lists.example.com> to the mailman transport with the transport map. Edit the file /etc/postfix/transport: lists.example.com<http://lists.example.com> mailman: Of course I replaced list.example.com<http://list.example.com> with mail.yugi.us<http://mail.yugi.us> Got further: I ran genaliases after that and virtual-mailman and virtual-mailman.db showed up in /var/lib/mailman/data woo hoo! I test sent to mail...@yugi.us<mailto:mail...@yugi.us> and got in /var/log/mail.log: Dec 22 13:39:32 localhost postfix/smtpd[3566]: NOQUEUE: reject: RCPT from 0-46.static.highlandsfibernetwork.com<http://0-46.static.highlandsfibernetwork.com>[216.9.0.46]: 550 5.1.1 <mail...@yugi.us<mailto:mail...@yugi.us>>: Recipient address rejected: User unknown in virtual mailbox table; from=<cae...@samsi.us<mailto:cae...@samsi.us>> to=<mail...@yugi.us<mailto:mail...@yugi.us>> proto=ESMTP helo=<mail.samsi.us<http://mail.samsi.us>> On Dec 22, 2016, at 1:29 PM, Mark Sapiro <m...@msapiro.net<mailto:m...@msapiro.net>> wrote: On 12/22/2016 01:21 PM, Caesar Samsi wrote: I’ve also added: POSTFIX_STYLE_VIRTUAL_DOMAINS = ['yugi.us<http://yugi.us>','mail.yugi.us<http://mail.yugi.us>'] VIRTUAL_MAILMAN_LOCAL_DOMAIN = ‘localhost' Restarted mailman, postfix, and apache2. I still get in /var/log/mail.log Dec 22 12:17:50 localhost postfix/trivial-rewrite[6456]: warning: hash:/var/lib/mailman/data/virtual-mailman is unavailable. open database /var/lib/mailman/data/virtual-mailman.db: No such file or directory Did you run genaliases? -- Mark Sapiro <m...@msapiro.net<mailto: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<mailto:Mailman-Users@python.org> https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/cmsamsi%40hotmail.com ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org