Released on: January 15, 2008, 3:26 am

Press Release Author: SpamExperts Corporation

Industry: Internet & Online

Press Release Summary: Spam technologies in comparison: Content-Scan vs. checksum
algorithm. What is the difference?

Press Release Body: Email communication is a process of SMTP servers exchanging
simple greeting commands and after the "friendly talk" the message content is
delivered to the appropriate server. Spam filtering can be done both at this SMTP
server communication process and at the actual message content level.

Content can be scanned using statistical systems based on prelearned databases of
spam and not-spam messages. Furthermore checksums of spam messages are often stored
in a large database to avoid copies of spam messages already detected to be
delivered to the recipient.
Since spammers keep randomly changing their messages, checksum filters are only
effective when the spam messages are similar and hence the spammer has to spend more
effort on his sending system to avoid such filtering. Statistical systems however
can make much more advanced predictions about the classification of an email even if
the message has never been seen before. Generally it is not sufficient to use a
single method; combining different filtering methods available results in increased
performance.


Web Site: http://www.spamexperts.com

Contact Details: SpamExperts Corporation
Oxfordlaan 70
6229 EV Maastricht
The Netherlands
T: +31 (0)437113800
(Mo-Fr 9am-18pm CET)
F: +31 (0)437113801
E: info@spamexperts.com
W: www.spamexperts.com
www.spamexperts.com
Presscontact: Sam Renkema, press@spamexperts.com