Office Outlook 2007 E-Mail Postmark

Posted by Spike Snizzle / at 2:55 AM / /

Outlook E-Mail Postmark is an innovative technology available in Office Outlook 2007. It was created to improve deliverability of legitimate e-mail that would otherwise run the risk of being junked or deleted. This technology analyzes outbound e-mail messages for indications of spam using its content filtering technology and instructs the sender's computer to perform a computation or puzzle. This work is then assigned to a header within the e-mail message as a token of legitimacy (a postmark). While not noticeable to the sender and receiver, the Outlook E-Mail Postmark is designed to make it difficult and time-intensive for spammers to send large numbers of e-mail messages.

When an e-mail message with a postmark is received by an inbound system such as Microsoft Exchange 2007, the system can easily verify the postmark. This improves the spam confidence level (SCL) of the e-mail message and improves the likelihood that the message will be delivered to the recipient's inbox instead of being rejected or delivered to the junk e-mail folder.