[Exim] Re: forced open relay

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Lähettäjä: Miquel van Smoorenburg
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Vastaanottaja: exim-users
Aihe: [Exim] Re: forced open relay
In article <4012A450.9487.180B6FF@localhost>,
Leonardo Boselli <leo@???> wrote:
>Problem: some people of our departmente sometimes conenct from
>autside.
>From a particular site there are however these costraints:
> 1. They cannot change the programs used there, so no authentication is
>possible; only plain SMTP (They can however choose the smtp server !)
> 2. The local mail server allows ONLY messages having as a _from_ field
>a local user, so they cannot send emai with their perlonal address
> 3. The ws there are natted, and IP addrres given is different even for
>different call from same machine, so a pop befor smtp is not feasible.
> 4. Only "favorable" situation is that the address given are only 20 ones,
>consecutive ....


You mean the IP address _is_ static, it changes but it's in
one static range? Why not simply allow relaying for that
range of addresses ? It's probably a /28 (32 addresses), so
just add th.ei.r.net/28 to the relay hosts list.

Mike.