Marc Perkel wrote:
>
>
> Terry Soucy wrote:
>> In the testing we have done here, less than 1% of connections to our low
>> priority MX actually cycled around to one of the higher priority MX
>> systems to deliver the message. I'm still not sure if this is a growing
>> pattern yet, but it could be a sign of spambots catching on. Whether or
>> not they hit a *randon* MX record is kind of difficult to determin. As
>> already mentioned, I would *love* to see this information.
>>

>
> Terry, of my 8 MX records 4 are spam traps. The are the highest
> numbered MX. I have 3 real servers online right now on lower numbered
> MX records so no legit email should got to the 4 upper MX records. The
> hits over the last 9 hours are as follows:
>
> 65521, 74854, 26132 and 27076 hits
>
> This indicates to me that the spam bots are hitting random MX records.
> Of those 1511 have connected 10 times or more to one of these 4
> addresses.
>
>


The question is, how can you prove that those hits are bots? I've seen
references that indicate different legitimate mailers don't always
follow the correct order of MX records.