spf

Disclaimer: This is still a work in progress, I might update this soon.

Introduction: in the mid-2002, many e-mail providers like Yahoo and Hotmail (no GMail at that time) started the war against spam and they went on improving spam fighting since then.
Now domain owners are fighting with anti-spam solutions which are blocking their innocent e-mails.
This blog entry is a result of one of the fights happening everyday :)