Re: [exim] Sender verify failed

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Autor: Ian Eiloart
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A: exim-users
Assumpte: Re: [exim] Sender verify failed


--On May 4, 2005 15:16:21 +0100 Doug <genesys2001uk@???> wrote:

> Hiya all,
>
> We currently use callouts to verify mail is good. However it seems
> that some mail servers out there are not responding to callouts (non
> RFC compliant? ). Whatever the reason, this mail is actually good and
> we need to receive it.
>
> Has anyone come across this kind of problem before and what methods do
> you guys use? We currently have a list of IPs that we accept relay
> from regardless, and we currently have to add each 'problem' host each
> time one pops up.


I don't do that for a host of reasons. Not least of which is that it is
just as easy for the remote admin to fix their server. If you add the
server to a white list, then the users concerned have no motive to work on
the remote administrator to fix the server. Then, when the start sending
mail to my server, I have a hard time convincing them to fix their server.
The remote admin will say, "but this other remote site made an exception
for me", so I have to say, "how many remote sites to you want to persuade
to whitelist you".

I can list a dozen schools, a University, and several academic professional
organisations that I've persuaded to fix their servers, so you don't have
to whitelist them.


> Clear as mud huh, any takers tho?
>
> I might see some of you guys in Cambridge in July..
>
> Doug




--
Ian Eiloart
Servers Team
Sussex University ITS