Re: [cobalt-users] Re: Terrible mail failure problem

[Bruce Timberlake <bruce.timberlake@xxxxxxx>]

> Is it best to have a REVERSE entry for your main domain on your
> server on just domain.com or with a host added like www.domain.com
> or does it matter?

It depends. If your ISP delegates authority for reverse lookups to you,
a PTR record for your host should be set up. If they don't delegate, you
can set up all the PTR records you want but nobody will ever see/access
them. :)

If your ISP *does* delegate, you should set your PTR to point to
www.domain.com, not just domain.com.  PTR records are used to map
addresses to *host* names for a given network.

-- 
Bruce Timberlake
Technology Engineer
Sun Cobalt Server Appliances
Sun Microsystems, Inc.

E: bruce.timberlake@xxxxxxx
U: http://www.sun.com/cobalt/