Re: [exim] Sender callout verification on BATV signed addres…

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Autor: Mike Cardwell
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Dla: Exim users
Temat: Re: [exim] Sender callout verification on BATV signed addresses
David Saez Padros wrote:

>>> In the other hand we do callouts with a special
>>> username (not <>) to avoid problems with servers rejecting bounces
>> No matter your opinion on callouts, that is an epically bad idea. Imagine
>> that you and I are both doing that, and I want to send you an email:
>>
>> You get an email from dave-exim@???
>>     Your server replies with a callback from foo@???
>> My server sees an incoming message from foo@??? to
>> dave-exim@??? and responds with a callout from bar@???
>>     Your server responds with a callout from foo@??? to
>> bar@???....

>
> unless you accept anything for foo@??? wihtout doing any
> check (including callouts) at rcpt (and reject anything reaching
> predata)


A cleaner solution would be to just do callouts in the predata acl.

--
Mike Cardwell
(https://secure.grepular.com/) (http://perlcv.com/)