Here at ArcaMax, we have worked with Return Path for many years. They offer a comprehensive suite of email deliverability resources and we value their service in our business.

Recently, they released a special report called "The Ultimate Email Deliverability Glossary: Separating the Jargon from the Gibberish." Need we say more?

This ebook details important functions in the email business, including:

* How to calculate Inbox Placement Rate
* The controversial technique used by some ISPs and email receivers to thwart spammers
* Email authentication simplified
* What Sender Reputation Data (SRD) is and what those feedback emails actually look like
* Bonus graphics and charts to help you understand key terminology

You can get this resource here.