Re: sender_unqualified wishes

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Autor: Philip Hazel
Fecha:  
A: Neal Becker
Cc: exim-users
Asunto: Re: sender_unqualified wishes
On 17 Sep 1997, Neal Becker wrote:

> 1. Placing my domain name on mail lacking a domain is not really
> behaviour I want when it's mail I'm relaying for someone else.


They shouldn't be sending unqualified addresses. It is against the RFCs.
That is why Exim defaults to rejecting them.

> What
> can we do? When mail originates from a machine local to my domain,
> it's a nice feature for exim to tack on my domain, but not if it
> originates from somewhere else entirely.


You should set {sender,receiver}_unqualified_{hosts,nets} to recognize
only those machines that are local to your domain. Machines in other
domains shouldn't be sending you unqualified addresses.

> Maybe we should pull the
> domain name from the sender host domain name?


Not a good plan. The world is moving away from user@host addresses.

> 2. When relaying mail causes us to tack on a domain name, maybe an
> option to bounce back a warning to the sender?


Yuk. (Sorry, I just don't have much sympathy for attempts to support
domainless addresses across multiple domains.)

-- 
Philip Hazel                   University Computing Service,
ph10@???             New Museums Site, Cambridge CB2 3QG,
P.Hazel@???          England.  Phone: +44 1223 334714



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