Pump and Dump Spam

HCL Domino Domino Forum
1

is anybody using an Anti-spam product for Domino that is effective against Pump and Dump spam mails?

http://www.google.com/search?q=pump+dump+spam

If you are unaware of these, they are especially good at getting througfh spam filters as they usually just contain a single image with the spam text contained. The sender, subject etc is always different.

our mail is scanned by our ISP and is very effective, but 90%+ of those that get through are pump and dump spams

I know there are plenty of Domino anti-spams, but I want to make sure any additional spam protection I buy is effective against this partiucular nuisance.

I am aware that there are various methods for blocking emails via server settings, but I am a developer forced to wear an admins hat, and I do not want to cause any false positives!

Regards

Paul

2

Subject: Pump and Dump Spam

Chris may have some answers here:http://chris-linfoot.net/linfoot/blogsphe.nsf/BlogSearch?SearchView&Query=pump&Start=1&Count=-1&SearchOrder=4

Specifically, look at this:

http://chris-linfoot.net/d6plinks/CWLT-6V4E7A

The key here, and Chris does a lot of research on IP Addresses, is that you can reduce the amount that comes in using a good blacklist. Take a look at the comments to the post.

HTH.

Gregg

3

Subject: RE: Pump and Dump Spam

Blacklists won’t help where an ISP is handling all inbound relays.

We use the Trend Micro anti spam built into SMD3, set to a low sensitivity to avoid false positives on any email that makes it past blacklists and related checks.

SMD3, even at very low spam sensitivity seems very effective against image pump-n-dump, actually.