How do you send HTML email from:
s2 Member Pro > Auth.Net Options > Signup Confirmation Email
Changing text/plain to text/html in:
\s2member\src\includes\classes\email-configs.inc.php
Has no effect on the Auth.Net email. I can’t find a corresponding text/plain for the Auth.Net email.
I added HTML email support in today’s release.
The default is still plain text, but you can enable HTML from here: WP Admin > s2Member > General Options > Email Configuration > Enable HTML Emails? (beta)
A good alternative for turning all WordPress emails into HTML rather than plain text is this plug-in.
After using it for a few years I’ve yet to find an error with its formatting, that said given how complicated html email formatting can be I’ve hacked the source files to make the emails look EXACTLY the way I want and manually increased the plug-in’s version number far beyond what the original developer is likely to change his version to to stop my customisations being wiped out with the plug-in being updated!