Re: [cobalt-users] Email delivered to wrong domain

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

Jim Johnston wrote:

> I am having problems of email going into a different domain on a Cobalt 3i.
> For example, email is sent to joe@xxxxxxx, there is no joe@xxxxxxx, but
> there is one at abc.com.  So, the email goes to joe@xxxxxxx instead of
> bouncing.  This has caused some embarassing moments.  Is there any way to
> prevent this?

Yes.  the xyz.com domain must have either a catchall (@www.xyz.com)
alias under one of it's real users, OR you must enter manually at the
bottom of /etc/virtusertable:

@www.xyz.com (use tab here not spaces) error:nouser User unknown

If you use the latter, then you must do:

# makemap hash /etc/virtusertable </etc/virtusertable

and then restart sendmail.

> Cobalt 3i w/ 60 sites and around 200 users.
> I have DNS enabled on the RAQ, but no records are in there, I use an outside
> DNS service.

Doesn't have anything to do with it.  But if you're not serving anything
you shouldn't be running DNS; every program opens up unknown
vulnerabilities on your RaQ.  Why risk it?

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
nobaloney.net
P. O. Box 52672
Riverside, CA  92517
voice: (909) 787-8589  *  fax: (909) 782-0205