How to get mail to local destinations delivered?

[Chris G]

On Sun, Nov 11, 2007 at 10:35:50PM -0500, Tony Nelson wrote:
> At 4:49 PM +0000 11/10/07, Chris G wrote:
> >I have a fairly default Fedora 7 installation, certainly the sendmail
> >is just as it was installed.
> >
> >How do I get sendmail to deliver mail to local destinations?  The
> >system's hostname is home.isbd.net and it's connected to the Internet
> >via a router.  I have a CNAME set up at the hosting provider that
> >hosts isbd.net to point at the static address of my ADSL connection.
> >
> >When I send mail from my system to a local address it gets the
> >hostname added, thus mail gets sent to root at home.isbd.net,
> >postmaster at home.isbd.net, chris at home.isbd.net, etc.  All of this
> >fails because sendmail attempts to connect to the SMTP port of
> >home.isbd.net, which isn't possible because my router's firewall
> >doesn't accept connections on port 25.
> >
> >I don't want to open up port 25 and it seems a bit silly anyway to
> >send mail on such a long round trip.  Is there any way I can tell
> >sendmail that home.isbd.net is localhost (or 192.168.1.1)?  I have an
> >entry for home.isbd.net in my /etc/hosts file which is:-
> >
> >    192.168.1.1     home    home.isbd.net
> >
> >but obviously sendmail is doing a DNS lookup for home.isbd.net which
> >returns the 'external' IP address.
> 
> You didn't show your entire /etc/hosts file.  Does it start with:
> 
>     127.0.0.1    localhost localhost.localdomain
> 
> with the 192.x.x.x line after it?

Yes.  :-

    # Do not remove the following line, or various programs
    # that require network functionality will fail.
    127.0.0.1       localhost.localdomain   localhost
    ::1     localhost6.localdomain6 localhost6
    192.168.1.1     home.isbd.net home
    192.168.1.5     garage
    192.168.1.10    chris
    192.168.1.40    netpr
    192.168.1.44    hp7310  HPEDDBB7        HP000D9D068F7D
    192.168.1.254   speedtouch



-- 
Chris Green