[TriLUG] new kernel breaks email access?

[John Turner]

So I downloaded 2.4.16 from kernel.org and
got it all installed. When I rebooted using
my new kernel, my POP/SMTP email to nc.rr.com
stopped working. POP/SMTP connections to the
RR server are refused. I tested a SMTP connection
to trilug.org and that worked fine.

Rebooting back into the old kernel (RH 7.2 and
2.4.7) and things are working. 

I am sure this is something simple, anyone?

John