On Tuesday, February 13, 2024 4:52:03 PM CET Peter Humphrey wrote: > Hello list, > > For years, I've been using postfix to accept mail from LAN hosts, and from > the Internet via my ISP. This has never worked as I want it - it's just so > complex to set up and understand. Well, it is for a bear of little brain > like me. > > Can someone tell me how to make postfix accept all mail addressed to any > host or user on the LAN - and not forward any mail to anywhere at all? It's > running on a single-homed host on the LAN, and all other hosts are also > single homed. Any of four hosts can originate mail, and I have fetchmail > running on the same host to collect POP3 mail from my ISP. Dovecot serves > IMAP4 to KMail clients on the LAN. > > At present, postfix is insisting on forwarding mail addressed to root on a > LAN machine, but it's supposed to be acting on behalf of that machine. Two > other hosts' mails never show up anywhere. > > Or perhaps there's a more suitable MTA out there?
I've been using postfix for longer than I can remember. The config entries I changed from default are: --- main.cf --- myhostname = <hostname.TLD> mydomain = <TLD> myorigin = <TLD> mynetworks = <full list of local networks, ex. : 192.168.0.0/24, 192.168.1.0/24> smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination ------- Also, are all emails sent to "mydomain" or do you have additional domains configured? If the latter, did you set "virtual_alias_domains = hash:/etc/postfix/ virtual_domains" Include all virtual domains the file and converted the file to a .db ? -- Joost
