note 25207 rejected from function.mail by betz

This is a problem that had me searching for the past 48 hours... It's probably obvious for most of you, but if your $message starts with the word From, you will get a > sign at the beginning of the email. Don't ask *me* why! I tried this on PHP 4.2.1 on Windows, and 4.1.1 on Linux, just to check. This is my command: mail($email, $subject, $message, $from); You can try with this to check for yourself: mail($your_email, "subject", "From php.net","From: Someone <someone@whatever.com>\r\n"); It does the same! Any idea ? I guess it has something to do with having 2 strings start with the word From, but since the first three arguments are in the right order, I don't see why the body would be interpreted as a header.