Re: [exim] accept hosts = :

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Author: Philip Hazel
Date:  
To: Jason Meers
CC: exim-users, Chad Leigh
Subject: Re: [exim] accept hosts = :
On Fri, 27 Jan 2006, Jason Meers wrote:

> I feel uncomfortable with it too and sometimes used to add the fqdn of
> the exim server itself as if it were a "trusted domain". I think just
> adding 127.0.0.1 as a trusted host would achieve the same.


No, it would not. That would only catch messages submitted via TCP/IP to
127.0.0.1. Processes on the Exim box can submit messages without using
TCP/IP at all. For example:

exim -bm
exim -bs
exim -bS

> I'd be interested in seeing the "official" answer to this too.


It's given in the manual reference that the OP quoted. A message has an
empty associated $sender_host_address (which is what this is testing) if
it was submitted by a process on the local host without using TCP/IP.

-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book