Re: [cobalt-users] [Raq4] host name lookups in sendmail - server appends defaultdomain to unsuccessful lookups

[flash22@xxxxxxx]

On Mon, 21 Jan 2002, Jeff Lasman wrote:

> I really don't think this is a sendmail issue.

> >          ----- The following addresses had permanent fatal errors -----
> >          <ojay@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> >          (reason: system config error)
> 
> Why did it append your domain name on the end?  I'm not sure yet.  It
> might be a DNS error somewhere.  Are you using wildcard DNS for
> blueskyhost.com? 

That's exactly the problem, randommadeupstuff.blueskyhost.com
internet address = 216.234.186.121 - Looks like wildcards to me ;P

There's no matching MX that i can see...

In etc/resolv.conf, by default, the Raq's have 'search' set , it's a good
thing, but it's not compatable with wildcard dns used in the servers main
domain name ;P

It makes it do insane things when resolving remote domain names....

Yet another reason why wildcard dns isn't really such a good idea ;P (ok,
IMHO)

ps: nslookup in debug mode will show you all the chained queries with the
search path added step by step, it's handy for digging out this kind of
problem...

gsh