Today the new version 2.5.0 of EasyMail newsletter plugin is downloadable on WP.org.
First of all, thanks a lot to Wojtek Szałkiewicz that made some fixes and improvements on v.2.4.18.
Then, the alo-easymail_custom-hooks.php is deprecated. Inside plugin there is a new mu-plugins folder that contains several file with custom hooks: move one or more of those files into wp-content/mu-plugins to activate them.
I’ve just created a Github repository where the development version is hosted: github.com/groucho75/alo-easymail
And you can contribute to keep the plugin update donating some money to me.