I've worked around a similar problem with postfix recently. The solution turned out to be very simple, using Postfix's `virtual host' facility.
You basically insert into your /etc/postfix/main.cf file the contents of /usr/share/doc/postfix/examples/sample-virtual.cf; the critical line is: virtual_maps = hash:/etc/postfix/virtual You then create a /etc/postfix/virtual file; here's mine (`catnip.gol.com' and `tc-1-100.kawasaki.gol.ne.jp' are the two hostnames my system has had in in /etc/hostname; neither is actually a valid hostname since my ISP uses dynamic IP): @catnip.gol.com @localhost @tc-1-100.kawasaki.gol.ne.jp @localhost [and then tell postfix about the file with `postmap /etc/postfix/virtual'] If you send mail to just `root', postfix will attach the local hostname (from /etc/hostname), but then the virtual host map will change this to be just [EMAIL PROTECTED]', which postfix will correctly deliver to the local machine. -Miles
