sfrassanito on "[Plugin: WP Mail SMTP] Useless for multisite network admins"

Actually I discovered there is no problem. Have a look in:
- http://www.callum-macdonald.com/code/wp-mail-smtp/
- See also my comment in http://www.callum-macdonald.com/2008/12/12/wp-mail-smtp-v08/comment-page-8/#comment-155074 and how it has been solved if you are using AWS EC2 + SES
- Read wp-mail-smtp/wp_mail_smtp.php header for further explanations