Well, as it turns out, and the reason why it only started happening when I was on dialup, was that sendmail was working, except it was trying to send mail through the ethernet port, although I was dialed in via a modem. After disabling the ethernet port, everything worked (I don't have a network at home anymore anyway). Thanks to everyone who had suggestions. Best regards, Eric -- Eric Schwarz schwarztech at jmug.org schwarztech.macweekly.com