myhostname is set to "mail2" in main.cf, but the mx record points to mail.somedomain.com, (they share the same IP though) would it be doing an ip lookup first? I guess I need to "trick" it into thinking it's not the same if it's IP based.
On Thursday, May 30th, 2024 at 2:34 PM, Wietse Venema via Postfix-users <postfix-users@postfix.org> wrote: > Mailman29 via Postfix-users: > > > Well the logs say this, which doesn't help. > > May 30 14:01:02 mail2 postfix/smtp[1390778]: C5DCBA0501: > > to=prvs=1880817b8e=myem...@somedomain.com, relay=none, delay=5.2, > > delays=0/0/5.2/0, dsn=5.4.6, status=bounced (mail for somedomain.com > > loops back to myself) > > > On the contrary, it says that you have configured a mailer loop, > or that you have two different mail services that use the same MTA > name (in Postfix parlance, the MTA name is the myhostname setting). > > > The domain and the postfix server do share the same IP (haproxy > > server), but if Postfix would deliver the bounce message it would > > get passed through the proxy to the mail server backend. Is there > > a way to force this? > > > 1) If the Postfix machine is a front-end for a backend server, then > Postfix must be configured as a mail gateway, and there should be > a transport_maps setting that routes mail for the domain to the > backend instead of sending it to the public internet address. See > https://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall > > 2) If your Postfix server is behind an inbound proxy server, then > you MUST specify the external address with main.cf:proxy_interfaces, > so that Postfix will know that it should not try to connect there. > https://www.postfix.org/postconf.5.html#proxy_interfaces > > 3) If you really have more than one mail server, then they must > have different MTA names (In Postfix parlance the MTA name is the > myhostname setting). > > Wietse > > > On Thursday, May 30th, 2024 at 1:46 PM, Wietse Venema via Postfix-users > > postfix-users@postfix.org wrote: > > > > > Mailman29: > > > > > > > Brilliant! I had a loop with haproxy that pointed it back at my mail > > > > server! > > > > > > > > Now, how do I get postfix to send failures etc to my server? It > > > > seems they just disappear into the ether! > > > > > > Look in your logs: https://www.postfix.org/DEBUG_README.html#logging > > > > > > If you don't understand an error or warning message, report the > > > problem on the postfix-users mailing list. > > > > > > Wietse > > > > > > > Sent with Proton Mail secure email. > > > > > > > > On Thursday, May 30th, 2024 at 12:50 PM, Wietse Venema via > > > > Postfix-users postfix-users@postfix.org wrote: > > > > > > > > > Mailman29 via Postfix-users: > > > > > > > > > > > HI guys. > > > > > > I'm having an awful time getting postfix to work in one form only. > > > > > > Accept mail from one ip address only, regardless of the sender's > > > > > > domain name, and send it out to the recipients. Postfix has no > > > > > > accounts, and accepts no incoming mail. It's only for sending from > > > > > > my local server. > > > > > > > > > > > > Here's my main.cf, as you can see I have it set up to accept mail > > > > > > from my IP address only, but every time I try to send mail through > > > > > > it I get the error : (somedomain.com is placeholder for my FQDN) > > > > > > > > > > > > --> EHLO mail! > > > > > > <-- 250-relay.somedomain.com Hello mail [IPaddress], pleased to > > > > > > meet you > > > > > > > > > > THAT IS NOT Postfix. You can tweak settings and it will have no > > > > > effect, > > > > > because you are not taking to Postfix. > > > > > > > > > > I suggest that you look in the maillog file to fid out what > > > > > program is answering the connection.. > > > > > > > > > > Wietse > > > > > _______________________________________________ > > > > > Postfix-users mailing list -- postfix-users@postfix.org > > > > > To unsubscribe send an email to postfix-users-le...@postfix.org > > > > > > _______________________________________________ > > > Postfix-users mailing list -- postfix-users@postfix.org > > > To unsubscribe send an email to postfix-users-le...@postfix.org > > > _______________________________________________ > > > Postfix-users mailing list -- postfix-users@postfix.org > > > To unsubscribe send an email to postfix-users-le...@postfix.org > > _______________________________________________ > Postfix-users mailing list -- postfix-users@postfix.org > To unsubscribe send an email to postfix-users-le...@postfix.org _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
