Re: How to get mail to local destinations delivered?

On Tue, Nov 13, 2007 at 04:29:13PM +0900, John Summerfield wrote:
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

I haven't seen any evidence that that's happening to Chris; sendmail seems
to have the correct idea of its own name, but for some reason it's not
delivering mail to itself when Chris thinks it should.

Running sendmail with magic incantations involving -d will probably tell
Chris what it's doing. I've used it, and despite the current man-page's
assertion I did not read the source code to find what to do. I think
they're documented in the sendmail-doc package. I found them in a book by
Paul Vixie, but that book's not where I am, and it is now very old.

I've got the O'Reilly "Sendmail" book, I got it some years ago when I
was more involved in such things. It might throw some light on this
issue.

However it does feel distinctly like overkill when all I want is mail
delivery within a single system! :-)

It may well be of course that a trivial sendmail.mc/sendmail.cf will
do what I want, it's obvious that most of the contents of these files
are totally irrelevant to local mail delivery.

--
Chris Green

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