Sending PHP mail with Authentication

Hi All, Semi newbie email question... I have used the - mail() — Send mail php function to send email from a site. now it seems the server is blocking this for safety because I should be using authentication.... Q: mail() does not have authentication - correct? Q: So I read from the link below that maybe I should use - PEAR Mail package .... is this a good choice to send mail with authentication? ...any suggestions for basic sending email with authentication (setup info and links also) would be welcome http://email.about.com/od/emailprogrammingtips/qt/PHP_Email_SMTP_Authentication.htm -- Thanks, Dave - DealTek dealtek@gmail.com [db-3]