On Tue, Nov 13, 2007 at 03:25:19PM +1030, Tim wrote: > 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 > Yes, I'm pretty sure that's *exactly* my problem. My MUA (mutt) allows one to set the hostname for mail sent to 'name only' users. I had (probably naively given all these problems!) set the hostname in mutt to home.isbd.net. If I *don't* set the hostname in mutt and send a mail to 'chris' then (looking in maillog etc.) it appears that sendmail is appending a hostname of home.home and the mail gets sent to chris@xxxxxxxxxx I think the main issue is that very few "linux at home on the desktop" systems are set up to work as a proper domain on the internet with A records, MX records etc. and even fewer are set up like mine as a domain on the internet but *not* for E-Mail. -- Chris Green