This is for a "smarthost" like setup. Mail goes from my server of
multiple domains, 2 ip addresses, to this postfix server for delivery.
The postfix server does nothing but accept mail from the "real" server
and deliver it to the outside world, and supply bounce/error notifications.
On 3/28/2024 7:15 AM, Matus UHLAR - fantomas via Postfix-users wrote:
Please use plaintext for list mail.
On 28.03.24 06:39, Samuel Goodies via Postfix-users wrote:
Ok, I got it installed and running, but any mail from the server to be
relayed gets this error.
--> DATA
<-- 530 5.7.0 Authentication required
--> QUIT
are you trying to send mail to this postfix server or from this
postfix server?
I have set up this error when sending mail on ports 465/587, but It's
not postfix default afaik.
is it possible that you are trying to send mail through other mail
server on submission port where authentication is required and you
don't try to authenticate.
So far I've chosen Internet Site as my Debian configuration when the
package installed.
I added my main domain name, though this postfix box will pass mail
for several other domains as well.
I edited /etc/postfix/main.cf
Under mynetworks I added my firewalled mail server's IP address of
4.4.4.4 (the real one though, not that)
mynetworks = 127.0.0.0/8 4.4.4.4 [::ffff:127.0.0.0]/104 [::1]/128
Then I restarted with systemctl restart postfix
Finally, I added it as my smarthost, but the error above occurs. I
thought that adding my server's IP to the mynetworks line would
authenticate, but I think I misunderstood.
Can someone point me to where I messed up?
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