On 3/10/23 01:55, Dmitri Heerdegen wrote:

I've recently installed MM3 with Exim4  on, say, subdomain.myhost.tld and configured MM3 to use lists.someotherdomain.tld as web host and mail host. Thus, the mailman.cfg contains:

[mta] smtp_host: lists.someotherdomain.tld

When I send a message to test@lists.someotherdomain.tld it gets delivered, however the 'From:'-header becomes "test@subdomain.myhost.tld".

The From: should be unchanged from the incoming post unless the list is anonymous or DMARC mitigations are applied.

In the case of anonymous lists, the From should be the list's address and in the case of DMARC mitigations it should be something like User Name via listname <list-address>. In either case, the list address should be list-name@list-domain where list-domain is the list's email domain.

If the address is being rewritten as test@subdomain.myhost.tld it is probably Exim doing it.

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