In article <d53a20c7.0309040336.2b35aa75@posting.google.com >, mojo wrote:
> 1. Is there any useful reading besides Mail-Administration-HOWTO?

Try chapter 20 of the FreeBSD Handbook. While not exactly slackware
specific, I don't think there are any differences in the versions of
sendmail they refer to, at least not as far as configuration goes. That
was a great help to me in setting up my first mail server.