On Mon, 2007-11-12 at 19:24 +0000, Chris G wrote: > Ah, I'm beginning to understand, mail to 'chris' and 'root' works, but > sendmail would appear to add a hostname to what's sent by an MUA and > anything with a hostname after the username is sent out, which doesn't > work. Hmm, this sounds familiar. Somewhere along the line of setting up networking on one of my boxes, it got a FQDN set where there should just be a hostname. Then sendmail was adding the domain name onto the end of that. Naturally, this didn't work. And I got some peculiar error messages. e.g. What happened: my intended hostname: machine my intended domain name: example.com actual hostname: machine.example.com actual domain name: example.com Services making up a FQDN from the given information, came up with: machine.example.com.example.com -- [tim@bigblack ~]$ uname -ipr 2.6.23.1-10.fc7 i686 i386 Using FC 4, 5, 6 & 7, plus CentOS 5. Today, it's FC7. Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.