Re: set domain name in Debian `
On Tue 15 Nov 2016 at 10:10:17 -0500, Greg Wooledge wrote:
> On Tue, Nov 15, 2016 at 02:59:14PM +0000, Brian wrote:
> > On Tue 15 Nov 2016 at 09:18:33 -0500, Greg Wooledge wrote:
> > > Second choice:
> > > System mail name:
> > > eeg.ccf.org
>
> > > Eighth choice:
> > > Keep number of DNS-queries minimal?
> > > No
> >
> > You didn't use "yes"?
>
> Of course not. Why would I do that? I'm not on dialup. I'm on a
> corporate LAN where I run my own DNS nameservers.
It was the point of David Wright's mail and wouldn't have hurt. Also, it
may have indicated 'hostname -f' is not so "rubbish" after all.
> > It would also happily send a string without dots as the HELO.
>
> Isn't that controlled by the "System mail name" option? As you can
A common misconception, no. It is the domain name used to qualify mail
addresses without a domain name. Mail to brian would get sent as
brian@eeg.ccf.org.
> see, mine is set to eeg.ccf.org. Whether this is something I typed
> into exim config by hand long ago, or something that it picked up
> by itself from /etc/resolv.conf, I can no longer remember.
You typed it in. Unless another program had configured /etc/mailname
already. /etc/resolv.conf doesn't come into it.
> Either way, I would have made sure it was correct.
>
> > Whether the remote server is happy is another matter.
>
> Indeed. A mail server should be properly configured, not just left as
> "best guess from defaults".
A mail server which accepts an EHLO without dots in it *is* properly
configured.
--
Brian.
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