How to get mail to local destinations delivered?

Tim ignored_mailbox at
Sun Nov 11 19:34:34 UTC 2007

On Sun, 2007-11-11 at 14:28 +0000, Chris G wrote:
> What I *don't* quite understand is why sendmail thinks this is
> and why I couldn't tell it what the system should really be
> called.  Everything else (apache, ssh, etc.) thinks it's called

Have you set those other services up explicitly, or are they all
presuming something?

I recall that some services will check the current hostname, do a
reverse IP look up on that name, then do a forward name look up on that
IP, and go with the last result.

e.g. If your hosts file had:  computer

in it, and the computer hostname was set at "computer" (the hostname is
NOT "set" by the hosts file, that's done elsewhere), a service would
check the the IP for computer, get told, then it'd check
what hostname is associated with that IP, and go with the answer (which
will be the first name after the IP), and decide that it is

The same sort of thing applies for DNS, rather than the hosts file (the
first answer is it).

Things get can messy when something/somebody puts their hostname into
the local loopback line (the one).

Mail server address working out can be a little surprising if you have
proper DNS records.  You may well have the computer set to be, but if the MX record for the domain is set
to, that's the mail server address.

(This computer runs FC7, my others run FC4, FC5 & FC6, in case that's
 important to the thread.)

Don't send private replies to my address, the mailbox is ignored.
I read messages from the public lists.

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