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Re: How to get mail to local destinations delivered?



On Wed, Nov 14, 2007 at 08:52:24AM +0000, Chris G wrote:
> On Wed, Nov 14, 2007 at 08:24:34AM +0900, John Summerfield wrote:
> > Chris G wrote:
> >
> >>> My advice would be something similar:  Configure by the book.  Make sure
> >> What book?!  :-)   I think that's much of the problem, there's not
> >> much information directly related to setting up a home system as a
> >> sub-domain.
> >
> > There is nothing special about that, I've done it, Tim's done it. We both 
> > use our own DNS. You don't, and that _might_ be the significant difference.
> >
> Yes, I guess it could be.  Reading the O'Reilly sendmail book it does
> appear to be saying that sendmail uses DNS for *everything*.  I seem
> to have a workaround at the moment though so as that works there
> doesn't seem to be a lot of point in expending a huge amount more
> effort on this.
> 
> The workaround (well, discovery of what sendmail thinks 'here' is) is
> that mail sent to  <user>@isbd.net from my home system gets delivered
> locally.  Thus if I put:-
> 
>     root:       chris isbd net
> 
> at the end of /etc/aliases I get root's mail.  I'd dearly love to know
> *why* sendmail thinks my home system is called isbd.net but I think
> that's lost in the guts of sendmail somewhere.  There is no 'isbd.net'
> anywhere in my system, the only way that sendmail can be obtaining it
> is by removing the 'home' from 'home.isbd.net'.
> 
> 
> Out of interest a little 'C' test program from the O'Reilly Sendmail
> book which purports to get names in the way that Sendmail does
> produces the following output on my system:-
> 
>     hostname = 'home'
>     canonical = 'home.isbd.net'
>     alias: 'home'
> 
Out of interest I just copied the program to my work system (also
Fedora 7, but a different network environment of course) and there the
program produces:-

    hostname = 'chrisg.atroad.com'
    canonical = 'chrisg.atroad.com'
    alias: 'chrisg'


.... and on this work system mail to chris chrisg atroad com *does*
get delivered to me, I'll investigate!

-- 
Chris Green


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