Re: [courier-users] Delivery from hidden machine getting a "517 - Invalid domain"

[Jeff J. <ivb...@si...>]

On Wednesday 28 April 2004 22:17, John Bossert wrote:
> I don't want to eliminate the "bucky.affidian.com" (ro...@af... 
> sent from bucky works fine) and I don't want to put all the machines 
> that _might_ send a status message to root/me in DNS.

By default courier checks the return address of the message to see if the 
domain exists.  So your options are either to add those machines to your DNS 
or tell courier NOT to check the return address.

To turn off checking edit /etc/courier/esmtpd, find the BOFHCHECKDNS line, and 
set it to "0".

BOFHCHECKDNS="0"

Another option would be (I suppose) to configure all the sending machines to 
use 'affidian.com' as the domain instead of their machine name.  That might, 
or might not, be a trivial exercise.

Jeff Jansen