Re: [Exim] "relay" of confirmations

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Author: Philip Hazel
Date:  
To: Hans Morten Kind
CC: Nigel Metheringham, exim-users, edphk
Subject: Re: [Exim] "relay" of confirmations
On Thu, 27 Jan 2000, Hans Morten Kind wrote:

> > This could not be allowed as is... anyone from anywhere could relay
> > mail with <> sender through your box
>
> Well, there is a test on allow_unqualified_sender, but any
> machine within the nets defined by sender_unqualified_hosts
> would be allowed to relay with originator <>.


Indeed, what you have implemented is "If the sending host is permitted
to send unqualified senders, then if the sender is <> allow relaying,
regardless of anything else."

While this may be helpful to you, I don't think it is something that
should be screwed into Exim's code.

I think you are in an unusual situation where you want to allow <> to
relay from your networks, but not any other sending address.

Is this the only relaying that you want to permit? If so, Exim can
handle it. Set

host_accept_relay = your networks
sender_address_relay = :

However, if you want also to allow full relaying from some hosts this
isn't going to work.


-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.