I answered my own question. base64 encoded mime auth headers can be sent with PHP for authenticated mail relay servers such as Sambar 5.0 (increasingly popular). The trick is to use the more versatile smtp function. Example scripts can be found at ftp://ftp.anch.org/pub/www/php/ in a file called smtp_auth_php.zip
Why use a mail server that requires authentication? To prevent spam, of course! http://anch.org Free websites with SSL, PHP, ASP, SQL & more! No ugly popups / banners. Tech support forums Fozner > > Now I ask this question again. How do I send a valid AUTH header in a PHP > mail() request? > > -- PHP Windows Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]