Spammers are always using new tactics to get around spam protection; their latest tactic is using spam embedded into PDF documents. This makes it quite difficult for Anti-Spam products to detect these threats without increasing the false positive detections. Some Anti-Spam products just do not have the technology to detect these threats at all.

“Ultimately, filtering spam at the content level will become less and less effective. A better way to control spam is by considering the source of the message - the IP address of the mail server attempting to deliver the message” says David Salbego, Unix and operations manager of computing and information systems with Argonne National Laboratory, a division of the Department of Energy (DOE) operated out of the University of Chicago.

PDF spam currently accounts for 11% of all spam, and spam levels are on average at around 88% of all mail. Specialist expect the 90% barrier to be broken as soon as 30 days.

MX Police, our flagship email filtering Anti-Spam service utilizes advanced techniques such as sender reputation to maintain extremely high detection rates and amazingly low false positive rates. When we say “Bulletproof Your Email”; we mean it! Have a look at our datasheet for more information.

Author: Christopher

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