Jerry Geis wrote:
/ You still haven't answered how long nslookup takes to respond with these or your IP addresses. I think sendmail will ask DNS for an MX record first because that's how mail is supposed to work - then if that fails it goes for an A record or your hosts file.
Sorry - missed that one .
nslookup cnn.com comes back fast.
if I do nslookup mymachine.domain.com it comes back with error.
How do I make this resolve faster or something. I have no way to make an MX record for this box. its all just local email. it never leaves the box.
An error that is returned quickly isn't a problem - a timeout of many seconds is a problem. How long do the failing responses - and for your IP addresses and 127.0.0.1 take?
The cleanest approach is to run a local nameserver that is primary for your local domain (even if it is not official) and your local network ranges and caches for everything else.