Yes, all emails processed by s2Member are sent with a 
text/plain Content-Type header. You can Filter this with WordPress, but I don't advise doing so, because it may create problems 
( i.e. this affects all instances of the wp_mail function ), not good.
Create this directory and file:
/wp-content/mu-plugins/wp-mail.php
- Code: Select all
- <?php
 add_filter("wp_mail_content_type", "wp_mail_content_type_force");
 function wp_mail_content_type_force(){ return "text/html"; }
 ?>
@TODO: I'll see what we can do in a future release to make HTML emails possible w/s2Member only.