sendmail- configuration on a firewall?

[Andreas Schuldei <andreas@schuldei.org>]

This is one program I intended not to configure again. I like
postfix better. But since that is not part of the openbsd base
system, I will go with it.

I would like to have a system with these features:
- only one local user (not root!) receiving mail
- mail gateway for the internal network
- roots mail for the firewall goes to the admin.

Has anyone some sample inputfiles for m4 ready? I did this some
times many years ago. Any hints for quick reentry into the
configuration of the system?

does openbsd's sendmail make executing files by the .forward file
possible? I would need that feature.