Hello,

I am trying to set up a new system for a new list but finding that outgoing mail is failing.

The setup I have is FreeBSD 10.3 in a jail with localhost at 10.0.250.37. I have confirmed that routing in and out of the jail are correct by sending mail from it via command line, via telnet, and by posting to a newly created list. Unfortunately those messages are not relayed out, nor are list invitations.

The system is Mailman 2.1.21, Postfix 3.1.0, and Python 2.7.11.

I see this in logs/smtp-failure:

Apr 20 23:07:27 2016 (19197) Low level smtp error: [Errno 61] Connection refused, msgid: mailman.0.1461205537.18941.c2-list@lists.my.domain Apr 20 23:07:27 2016 (19197) delivery to my@email.address failed with code -1: [Errno 61] Connection refused Apr 20 23:07:27 2016 (19197) Low level smtp error: [Errno 61] Connection refused, msgid: mailman.0.1461205853.19010.c2-list@lists.my.domain Apr 20 23:07:27 2016 (19197) delivery to my@email.address ailed with code -1: [Errno 61] Connection refused Apr 20 23:07:27 2016 (19197) Low level smtp error: [Errno 61] Connection refused, msgid: mailman.0.1461206277.19201.c2-list@lists.my.domain Apr 20 23:07:27 2016 (19197) delivery to my@email.address failed with code -1: [Errno 61] Connection refused Apr 20 23:07:27 2016 (19197) Low level smtp error: [Errno 61] Connection refused, msgid: mailman.0.1461207076.19195.mailman@lists.my.domain Apr 20 23:07:27 2016 (19197) delivery to my@email.address failed with code -1: [Errno 61] Connection refused

Nothing shows up in Postfix logs for these refused connections.

And lots of lines that look like this in logs/post: Apr 20 23:07:26 2016 (19197) post to c2-list from c2-list-bounces@lists.my.domain, size=583, message-id=mailman.0.1461205085.18509.c2-list@lists.my.domain, 1 failures

Scanning Google I saw issues where there were errors in /etc/hosts. That file is world-readable and there is a correct entry for localhost. I have also confirmed that Postfix is listening on 25 on localhost using telnet and sockstat:

# telnet localhost 25 Trying 10.0.250.37... Connected to localhost. Escape character is '^]'. 220 lists.my.domain ESMTP Postfix

The above works for root and for a non-root user.

# sockstat | grep 25 postfix smtpd 19679 6 tcp4 10.0.250.37:25 *:* root master 19170 13 tcp4 10.0.250.37:25 *:*

I'm at a loss as to where to look next. Thanks for any input.