Unrecognized host name Saved message in /root/dead.letter

I just rebuilt sendmail (version 8.12) so I can allow my client to use Outlook and am unable to send mail at all now. When I try to send mail to stinky@boohoo.com (made up email address used only for this posting) from the comand line I get the following error:

Unrecognized host name boohoo.com.
/root/dead.letter... Saved message in /root/dead.letter

This also happens when I try to send mail via a pre-existing (pre-rebuild) alias. It looks like any outside address is not recognized. There are no good clues in the maillog. I've removed the 127.0.0.1 bit in the sendmail.cf file, but that's about it. Can anyone point me in the right direction?

Thanks alot,
Mike

Aha!!! It had to be something simple. When I rebuilt sendmail, I ran



but didn't know about the submit.cf file, which sendmail uses when sending mail. So a quick



did the trick. All problems fixed. Php is sending mail just like it used to and the mail command works again, too.

Hope this will save someone else a few days of trying a thousand other things.

Mike