Re: [Exim] Rejecting all mail apparently from a particular d…

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Author: Philip Hazel
Date:  
To: tdn
CC: exim-users
Subject: Re: [Exim] Rejecting all mail apparently from a particular domain except from a particular IP
On Fri, 8 Feb 2002, tdn wrote:

> Is it possible to set exim to reject all that apparently comes from
> @domain.com unless its from a specific IP address ?
> I have a client who fears that other people can forge the from: address.
> So, he wants me to reject any mail coming to my server with a from address
> of his domain unless the previous hop
> is his mail server.


You do not want to do this. Consider:

his server ->
  some other host ->
    user at other host forwards mail to your server ->
      you get mail from some other host with sender@hisdomain


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