Re: [cobalt-users] Sendmail weirdness excessive recursion

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

sm wrote:

> I saw this problem mentions on this list a few days ago.
> 
> >Second... DNS seems to be fine.  Just to be sure, since it's not on the
> >RaQ where I can manipulate it, we're moving it to my own servers where I
> >can.  Some of the root servers seem to point to us, some don't yet
> ><frown>.  Feel free to look at DNS if you think it's a problem, I'm not
> >proud <wry grin>.
> 
> I did a lookup when I read the email and I saw that the domains resolve.

It turns out it WAS bad DNS.  I've explained it on cobalt-developers.

Taco pointed it out to me, and finally explained it in a way that even I
could understand...

It seems that on any system but RaQs you can have www reolve via a
CNAME.  But not on a RaQ, because internally all email addressed to, for
example, jblists@xxxxxxxxxxxxx, is rewritten to
jblists@xxxxxxxxxxxxxxxxxx

And the "www" was resolving through a CNAME.

Thanks you Taco, and everyone else who helped.

> I don't think the problem is with your aliases file.  Please verify the
> virtusertable thoroughly.

Virtusretable and the alias file were both fine.  It turned out to be
DNS, and now we know to never resolve the hostname of the domain via
CNAME.

Again, thanks, everyone who helped.

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
Linux and Cobalt/Sun/RaQ Consulting
nobaloney.net
P. O. Box 52672, Riverside, CA  92517
voice: (909) 778-9980  *  fax: (702) 548-9484