Sendmail Help request

[Jonathan Hutchins]

Way to go Hal!

Do you (or anyone else) know if it's possible to specify a fall-back routing 
for mail in either sendmail or another mailer?  Allow mail to be delivered 
directly to intelligently configured servers, but fall back to ISP routing 
for those using brain-dead configurations like Ironmail appliances or other 
inaccurate IP-range blocking services.

Given that we're unlikely to be able to deploy enough cluebats to cure 
IP-range blocking, it seems like a logical feature.