[TriLUG] Hopefully not so easy...

[Chris Knowles]

Got another one for you.

Ever since I discovered fetchmail, I've also been using sendmail to send out 
my e-mail.  (In that telocity gets cranky when you haven't just checked your 
e-mail before you try using their SMTP server.)

Now, I've set the hostnames of the box I'm using using the GUI programs.  
(That question was for a firewall)

PRoblem is, some domains are returning my e-mail saying that the sending 
domain must exist.  And the domain they think my e-mail is coming from is 
localhost.locadomain.

So, what do I do to allow myself to send mail?  I'm looking at the headers now 
(And I've sent this from the box in question) and I see a lot of 
knowlesc at localhost and such, but I've set the domain name to 
deneb.dyndns.org.  Do I need to change some sendmail configuration?

CJK