I’d like to share my new and public Yii project called MailWizz EMA .
It is an email marketing application that took a bit more than 6 months to develop and reach v.1 and contains everything you would expect from an email marketing application and a bit more (and as always, lots of things under development).
Also, it contains a powerful API and also a PHP-SDK for that API and it can also be integrated with wordpress to certain level.
You can see a full list of features here and who knows, maybe it can be handy for you too if you deal with email marketing.
Just a heads up, it is not free, but not expensive either
Everything built in the wonderful Yii framework, simple.
If you have questions please let me know,
Other than that, happy browsing.