SPAM Filter Series: How to Please Postini

Postini is a cloud-computing service provided by Google for filtering email spam and malware before it is delivered to a client’s mail server. Analyzing Postini headers can give you a lot of information about why an email was flagged as spam or not. I know what you’re thinking: that sounds pretty confusing. It’s actually not as bad as it might seem. This blog is the first in a series which will take you through it step by step.