sendmail strangeness

[christopher.h.moore at verizon.net]

Jacob,
You might have a look at the mini-HOWTO titled:
Sendmail-Address-Rewrite

This walks you through setting up your sendmail.mc file for situations where you are using a dial-up connection where your domain is not on the internet.  There's more to it than just a smart_host.  You need to set up a genericsdomain and a genericstable in your /etc/mail directory.  

I can help if needed.

Chris