[BUGS] Sendmail as forwarder

[Jerahmy Pocott]

Just a quick question,

Is there any simple way to set sendmail to forward out going mail to  
an upstream relay if it's not destined for the local host/domain,  
rather than it trying to deliver the mail directly? I know the usual  
recommendation for this is to replace sendmail with something like  
ssmtp because sendmail is too complicated, but I'm not afraid of  
complicated and I want to use sendmail for intranet mail. Which means  
that if the address is outside the intranet it gets rejected because  
the server doesn't actually map to any dns name externally.

Does that make sense?
J.