Re: [exim] exim still accepting email after 550 from acl_che…

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Autor: Mike Brudenell
Data:  
Dla: Michael Toth
CC: Exim Users
Temat: Re: [exim] exim still accepting email after 550 from acl_check_helo
On 12 January 2016 at 16:11, Michael Toth <exim@???> wrote:

> And right after that the RFC says
> "In any event, a client MUST issue HELO or EHLO before starting a mail
> transaction"
>


Hmmm… A very good point. Presumably there are some non-mail transaction
instructions you can give that are valid without the HELO/EHLO first being
issued.

OK, so this begs the question that if the RFC says a client MUST issue a
HELO/EHLO before a mail transaction, then shouldn't Exim refuse to accept
MAIL FROM until a HELO/EHLO has been received *and* accepted? (ie, doing a
"deny" and issuing a 5xx response should leave Exim in its initial 'still
looking for a HELO/EHLO or non-mail transaction command')

Cheers,
Mike B-)

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