Disabling client IP reverse DNS?
murch at andrew.cmu.edu
Tue Nov 22 10:33:31 EST 2005
Scott Balmos wrote:
> Hi all,
> I know in a virtual domain setup, if a user connects with an unqualified
> username, the server does a reverse DNS lookup on the *server's*
> incoming connection IP, to determine a default virtual domain name.
> But how do I disable Cyrus from doing a reverse DNS on the *client's* IP
> that they're connecting from? Connections to my mail server from home
> are taking very long because of a reverse DNS lookup being done on my
> home IP. This fails because my stupid cable Net ISP doesn't know how to
> run DNS properly. :)
Set the 'virtdomains' option to 'userid' instead of 1/yes/on.
Carnegie Mellon University
More information about the Info-cyrus