Re: [Exim] sender verification

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Autor: Dan Shoop
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A: Ian A B Eiloart, exim-users
Assumpte: Re: [Exim] sender verification
At 9:23 AM +0000 1/29/04, Ian A B Eiloart wrote:
>>>>   require verify        = sender/callout
>>>>[...]

>>>>
>>>>Now if I understand this correctly, the verify sender should check
>>>>that the sender is valid, at least from a delivery standpoint. So I'd
>>>>imagine that if a message delivery attempt was made from a
>>>>non-existant user at a fake domain that the message would get
>>>>rejected, but this doesn't appear to be the case for me:
>>>
>>>
>
>Hmm, that should work - provided you made sure that your test domain really
>doesn't have a mail server. You should use EXAMPLE.COM: a domain that is
>guaranteed to be non-existant by RFC whateveritis.
>


I'm pretty sure that the tests I tried don't match real domains.

>Note that success on a sender verify callout does not guarantee that the
>user exists.


Understood, but just knowing that the host exists is enough.

>Are you sure that the callout is going to the correct host, and not to a
>local relay? I've tried your test, using a bad sender address from our
>domain while snooping the network, and I haven't seen any attempt on your
>part to contact our server.


I'd agree, it's not sending out any sender verification. As for why
that is I don't understand.
--

-dhan

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Dan Shoop                                              shoop@???
Consulting Internet Architect                              shoop@???
AIM: iWiring


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