Re: [exim] Detect missing reverse dns

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Συντάκτης: MarkdV
Ημερομηνία:  
Προς: Exim Mailing List
Αντικείμενο: Re: [exim] Detect missing reverse dns
Ian P. Christian wrote:
> 2009/7/26 MarkdV <markdv.exim@???>:
>> You seem to advocate this every chance you get. :)
>
> Hm, sorry :)


Don't be, not on my account anyway. As you noted we seem to think alike
on this subject. :)

>> I'm thinking of trying something like this in acl_smtp_mail:
>>
>>  defer
>>  ! sender        = :
>>  ! dnslists      = list.dnswl.org
>>  ! verify        = reverse_host_lookup
>>  ! verify        = helo
>>    ratelimit     = X_DNS_HELO_LIMIT / per_mail / leaky /
>> $sender_host_address
>>    message       = Ratelimited. Fix your (r)DNS and/or HELO for faster
>> deliveries.

>
> I see some people on list clearly don't agree with me, the majority of
> which is people saying it will block legitimate mail though... so, if
> you do disagree, how about using Mark's suggestion of his ACL above?


In general. I've found the ratelimit feature to be a great way to
limit/discourage what I would (be able to) outright reject in a perfect
world.

Cheers,
Mark.