On 12/17/23 1:20 PM, eboltz@lhtservices.com wrote:
Okay, created a new Mail Host with only 'list.example.com' and no alias domain. I then created a new list and tried subscribe/unsubscribe but got the following error message in mail.log file
Dec 17 21:14:26 mailman3 postfix/smtpd[6649]: 057E744552: client=localhost[127.0.0.1] Dec 17 21:14:26 mailman3 postfix/cleanup[6653]: 057E744552: message-id=<170284766462.1144.7361224077829393518@ec2-54-172-107-21.compute-1.amazonaws.com> Dec 17 21:14:26 mailman3 postfix/qmgr[6644]: 057E744552: from=<list_test-bounces@lists.example.com>, size=908, nrcpt=1 (queue active) Dec 17 21:14:26 mailman3 postfix/smtpd[6649]: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5 Dec 17 21:14:27 mailman3 postfix/smtp[6654]: 057E744552: to=<eboltz@lhtservices.com>, relay=mail.smtp2go.com[45.79.114.202]:587, delay=1, delays=0.01/0.01/0.52/0.46, dsn=5.0.0, status=bounced (host mail.smtp2go.com[45.79.114.202] said: 550-From header sender domain not verified (lists.example.com) 550-On your Sending > Verified Senders page 550 verify the sender domain or email to be allowed to send. (in reply to end of DATA command))
Your relay host doesn't like lists.example.com as a sender. You need to fix this on the relay host mail.smtp2go.com. It seems to say that you need to go to the Sending > Verified Senders page on the relay host and add lists.example.com.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan