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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