Re: [exim] Poor Man's Low Tech Greylist

Magnus Holmgren wrote:
> On Sunday 21 January 2007 01:59, Marc Perkel wrote:
>
>> Jeremy Harris wrote:
>>
>>> Marc Perkel wrote:
>>>
>>>> Takes a few minutes to set and the spam goes away
>>>>
>>> ... until the IP for your never-accepting MX drops
>>> of the lists of IPs they have as "known to accept mail".
>>>
>>> - Jeremy
>>>
>> What are you talking about?
>>
>
> I think he's referring to the fact that some people have reported how one or
> more of their servers continue getting spam for domains for which said
> servers haven't been listed as MX for for ages, indicating that at least
> spammers keep their own list of MXs with each domain instead of querying the
> DNS for that information every time.
>

OK - but I'm not saying this is going to get rid of ALL the spam. Just a
huge amount of it. Try it and see. I'm running it on about 300 domains now.