I always had the same problem with "Universal Email". Only you use "Mail" and "PEAR mail". My clients tend to have shared hosting, so I can not install "PEAR mail". Your mail is protected with SMTP authentication, username and password.
The only solution I have is using components from other companies such as: Dmxzone "Smart Mailer PHP" or Hotdreamweaver "Form to Mail", I may use autentificaión SMTP, username and password without PEAR mail. But hard use with your extensions as eCart. Spends more time than necessary to create a simple send form by mail.
Do you plan to add a solution as do the two extensions that I mentioned in the next future?