Sending email the right way is easy when using the WP_Mandrill Plugin. The makers of mailchimp have developed the plugin, so i had high expectations and all of them were fulfilled.
Unfortunately White Label CMS doesn’t play nicely with it. After activation, a error message pops up
Mandrill: wp_mail has been declared by another process or plugin,
so you won't be able to use Mandrill until the problem is solved.
I had to manually edit the file wlcms-plugin.php
of the White Label CMS Plugin.
After commenting out
if(!function_exists('wp_get_current_user')) { include(ABSPATH . "wp-includes/pluggable.php"); }
everything works fine again.
Actually i haven’t tested all features of the White Label CMS, but most of them and currently it seems to work nicely this way. I read a bit about it and there seems to be no reason this file should be loaded again, as it’s done by wordpress itself anyway…