On 11/13/24 18:44, jko...@luc.edu wrote:

Now I am getting this error in mail.log. I have changed quite a few settings to 
try and not bother you anymore, but nothing seems to be working. Hopefully this 
will be an easy one for you. The unknown IP address is our F5 where the mail is 
coming through.

2024-11-13T20:31:15.988423-06:00 lstprdls01 postfix/smtpd[2261655]: connect 
from unknown[10.18.3.105]
2024-11-13T20:31:16.486460-06:00 lstprdls01 postfix/smtpd[2261655]: disconnect 
from unknown[10.18.3.105] ehlo=1 quit=1 commands=2
2024-11-13T20:31:18.246010-06:00 lstprdls01 postfix/smtpd[2261655]: connect 
from unknown[10.18.3.105]
2024-11-13T20:31:18.708146-06:00 lstprdls01 postfix/smtpd[2261655]: NOQUEUE: reject: RCPT from 
unknown[10.18.3.105]: 550 5.1.1 <joet...@listservnew.luc.edu>: Recipient address rejected: User 
unknown in local recipient table; from=<jko...@luc.edu> to=<joet...@listservnew.luc.edu> 
proto=ESMTP helo=<CO1PR03CU002.outbound.protection.outlook.com>
2024-11-13T20:31:18.852290-06:00 lstprdls01 postfix/smtpd[2261655]: disconnect 
from unknown[10.18.3.105] ehlo=2 mail=1 rcpt=0/1 rset=1 quit=1 commands=5/6

What is joet...@listservnew.luc.edu? Is that a list? If so, is it mentioned in Mailman's var/data/postfix_lmtp and is that included in transport_maps and in local_recipient_maps in Postfix main.cf?

--
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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