Minor release to force at least version 6.2.1 of Guzzle that addresses CVE-2016-5385 (HTTPOXY). This is not being labelled as a security release because the code within this module is not the cause of the issue. An update of your libraries with Composer Manager would have already updated you to the latest version of Guzzle. This is only a safety precaution.
First full release of the module out of beta. Beta lasted a long time. This version also uses the latest API just released (v1.0.5). There should be no compatibility differences between this release and the last beta. Just be certain to update your PHP library to 1.0.5.
Beta 3 release, working toward a full release. This release addressed multipart/mixed messages, better code documentation, sending a text email with the HTML, and fixing a bug with multiple recipients.
Alpha 3 Release is a major upgrade and almost complete re-write of the module. If you are currently running Alpha 2, please read all the documentation and ask questions in the issue queue. There are a lot of new dependencies to run Alpha 3, but there are a lot of enhancements. Below is a listing of items that document changes and upgrades.