I'm trying to set up a central sendmail server for my home network. To a first approximation, what I want is just a place that will catch all the mail for 'root' and for crontab users, from two or three boxen, so that I only have to sit down at one box to get updates on the situation. I can't seem to find any FM to R for this task --- most seem to be aimed at either (a) sendmail for a single box with envelope masquerading or (b) sendmail for a box exposed to the internet doing general email service. I'm stumbling along, but keep getting the following errors when subsidiary boxen send email to the mail server: Mar 29 09:13:13 cthulhu sendmail[20590]: NOQUEUE: nyarlathotep [192.168.0.14] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA the subsidiary box, nyarlathotep, is sending mail through mailx, the lightweight mailer that you get by default in Mandrake (both boxen are Mandrake 8.1). Does anybody know if this mailer does something deviant with smtp? Or is there perhaps some handshaking that's blocked by tcpwrappers on nyarlathotep? Or, is this a problem because I don't have DNS on my subnet, and DNS lookup doesn't work to authenticate nyarlathotep? I'm having a hard time even figuring out how to troubleshoot this and, as I said, my googling doesn't seem to help. Thanks, R P.S. I have considered changing to qmail or postfix, but that seems like a big mess of additional cost, when the sendmail solution almost works.