On 6/12/25 19:48, Mark Sapiro wrote:

That is not correct. Postfix should receive the initial connect and smtp for the list and then transport_maps should tell it to relay the message via lmtp to the configured lmtp_host and lmtp_port (127.0.0.1:8024 per your previously posted mailman.cfg). You have also posted that Postfix main.cf contains

transport_maps = hash:/var/lib/mailman3/data/postfix_lmtp

What is the content of that file? In particular does it contain

myli...@lists.yyy.com                        lmtp:[127.0.0.1]:8024


Yes, that's exactly the case.

and is the timestamp of /var/lib/mailman3/data/postfix_lmtp.db >= that of /var/lib/mailman3/data/postfix_lmtp, and have you restarted/reloaded Postfix since updating main.cf? And, is Mailman core running and listening on port 8024?


# ls -rtl
total 296
-rw-rw---- 1 list list 270336 Jun  8 21:58 mailman.db
-rw-rw---- 1 list list   1123 Jun 12 08:43 postfix_lmtp
-rw-rw---- 1 list list    367 Jun 12 08:43 postfix_domains
-rw-r----- 1 list list  12288 Jun 12 08:43 postfix_lmtp.db
-rw-r----- 1 list list  12288 Jun 12 08:43 postfix_domains.db

# lsof -i :8024
COMMAND     PID USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
python3 1146914 list 23u IPv4 78503106 0t0 TCP localhost:8024 (LISTEN)

I always restart mailman3 after changing main.cf

if there is any interest, postfix_domains contains this line:

lists.yyy.com lists.yyy.com

Florian.
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