note 26300 added to ref.mail

I just upgraded to Redhat 8 with sendmail 8.12.5. I am still using PHP 4.0.6 tho. All of my email scripts worked before the upgrade and now, although they do send email, the headers are ignored. They are included as the first few lines of the message but not used at all as headers. Any ideas? -- http://www.php.net/manual/en/ref.mail.php http://master.php.net/manage/user-notes.php?action=edit+26300 http://master.php.net/manage/user-notes.php?action=delete+26300 http://master.php.net/manage/user-notes.php?action=reject+26300