On 3/2/23 13:16, mailman3@outofoptions.net wrote:

I installed and tested Mailman3. I imported a Mailman2 list. All looks good but I get this error.

Recipient address rejected: User unknown in virtual alias table; from=<hit@options.org> to=<atm@alist.net>

The aliases seem to show up find in the GUI for the control panel software I use. Postfix virual file has a mapping of atm to atm@alist.net .

It seems mailman at least sees the connection. From the smtp.log under mailman:

Presumably there are LHLO, MAIL FROM, and RCPT TO entries before these next ones.

`Mar 02 10:14:13 2023 (1242405) ('127.0.0.1', 56410) recip: atm@alist.net Mar 02 10:14:13 2023 (1242405) ('127.0.0.1', 56410) Data: b'DATA' Mar 02 10:14:13 2023 (1242405) ('127.0.0.1', 56410) Data: b'QUIT' Mar 02 10:14:13 2023 (1242405) ('127.0.0.1', 56410) connection lost Mar 02 10:14:13 2023 (1242405) Connection lost during _handle_client()

The connection lost entries are normal in the log. This all looks like Mailman's receiving of the message via LMTP from Postfix.

This is inconsistent with Postfix reporting Recipient address rejected: User unknown in virtual alias table which would have occurred before any attempt to relay the message via LMTP.

In order to understand more about this, I'd need to see at least the output from postconf -n. I'm just guessing here, but https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.ht... may be applicable in your case.

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