Postfix and SSL authentication to mailhop relay
- I'm trying to move my mailserver from sendmail on Red Hat 9 to postfix
on Unslung (I need to retire the RH9 server).
I thought that postfix would be easier to setup and manage than
sendmail but it's not turning out that way.
Everything was working OK until I tried to implement ssl
authentication to my external relay, outbound.mailhop.org.
This works fine on my RH9 system but on unslung/postfix authentication
isn't happening. All external emails get bounced ...
"outbound.mailhop.org[220.127.116.11] said: 550 You must authenticate
to use MailHop Outbound (in reply to MAIL FROM command)"
I've meticulously followed the instructions at -
and other similar howto sites.
Has anyone had a similar problem - and fixed it?