Backup MX stoped working

[markmg]

i set up a backup mx server with this manual

http://help.directadmin.com/item.php?id=167

Always worked but now i get a bounce mail with the message authentication required

i checked al the settings and everything is stil in place

anyone know how i can fix this ?

 

[nobaloney]

What if anything have you updated recently on your backup MX server?

Jeff

 

[DirectAdmin Support]

Which version of the exim.conf are you using?
The guide was written some time ago, for 2.x.x and older..
Although, I just tested it with a much newer version, and it returned "250 Accepted" once I setup the id=167 guide..

Also, is the message just "authentication required", or is it "relay not permitted, authentication required".

I'm suspecting that the exim variable:
relay_domains

does not hold the domains that need to be relayed..

Or else, the recipient is not able to be verified.
This is right before the "authentication required" error:

[/COLOR]  accept  domains = +relay_domains          endpass
          verify = recipient

which should be how the message get's accepted..

You could test by comming out the endpass and verify lines, and restart exim.. to test if that works.

Also double check the mx_domains file is readable by exim (Chown to mail:mail).. and has the domain to be relayed.

Check /var/log/exim/mainlog, rejectlog, and paniclog for clues.

John