We have observed a marked rise in email probes testing common white-list
strategies. In particular these seem to be targeted to amazon, paypal,
and ebay.

The probes are designed to exploit complex white rules that are used to
prevent legitimate content from these providers from being captured by
spam rules.

We believe that what will follow is a rash of scam messages designed to
extract personal information from users of these services.

These probes are _not_ casual/typica... they are well thought out and
appear to be part of a very serious effort. All of them use a matched
combination of forged header and message features.

We have seen this before in small numbers and done with simpler probes.
Both the number and sophistication of the probes are significantly
greater than we are used to seeing.

We recommend: be on the lookout for these new scam messages to start
arriving, and be prepared to alter/refine your white rule strategies to
compensate. If you have some legitimate messages around from ebay,
amazon, and paypal then you should consider altering your white-list
strategies ahead of time.

Hope this helps,
_M

Pete McNeil (Madscientist)
President, MicroNeil Research Corporation
Chief SortMonster, www.SortMonster.com
VOX: 703-406-2016
FAX: 703-406-2017

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