diff --git a/mail/RFC822.php b/mail/RFC822.php
index e1774f9..986ba14 100755
--- a/mail/RFC822.php
+++ b/mail/RFC822.php
@@ -6,7 +6,7 @@
     * | registered charities and educational institutes there is a reduced license   |
     * | fee available. You can read more  at:                                        |
     * |                                                                              |
-    * |                  https://www.phpguru.org/static/license.html                  |
+    * |                  http://www.phpguru.org/static/license.html                  |
     * o------------------------------------------------------------------------------o
     *
     * © Copyright 2008,2009 Richard Heyes
diff --git a/mail/htmlMimeMail5.php b/mail/htmlMimeMail5.php
index 2df1555..a76fa99 100755
--- a/mail/htmlMimeMail5.php
+++ b/mail/htmlMimeMail5.php
@@ -6,7 +6,7 @@
     * | registered charities and educational institutes there is a reduced license   |
     * | fee available. You can read more  at:                                        |
     * |                                                                              |
-    * |                  https://www.phpguru.org/static/license.html                  |
+    * |                  http://www.phpguru.org/static/license.html                  |
     * o------------------------------------------------------------------------------o
     *
     * © Copyright 2008,2009 Richard Heyes
@@ -146,7 +146,7 @@ class htmlMimeMail5
         * Make sure the MIME version header is first.
         */
         $this->headers['MIME-Version'] = '1.0';
-        $this->headers['X-Mailer'] = 'htmlMimeMail5 <https://www.phpguru.org/>';
+        $this->headers['X-Mailer'] = 'htmlMimeMail5 <http://www.phpguru.org/>';
     }
 
     /**
diff --git a/mail/mimePart.php b/mail/mimePart.php
index 0da26f0..1dd8ff0 100755
--- a/mail/mimePart.php
+++ b/mail/mimePart.php
@@ -6,7 +6,7 @@
     * | registered charities and educational institutes there is a reduced license   |
     * | fee available. You can read more  at:                                        |
     * |                                                                              |
-    * |                  https://www.phpguru.org/static/license.html                  |
+    * |                  http://www.phpguru.org/static/license.html                  |
     * o------------------------------------------------------------------------------o
     *
     * © Copyright 2008,2009 Richard Heyes
@@ -59,7 +59,7 @@
 * $email['headers'][] = 'Mime-Version: 1.0';
 *
 *
-* Further examples are available at https://www.phpguru.org
+* Further examples are available at http://www.phpguru.org
 *
 * TODO:
 *  - Set encode() to return the $obj->encoded if encode()
diff --git a/mail/smtp.php b/mail/smtp.php
index 6d170b0..e428645 100755
--- a/mail/smtp.php
+++ b/mail/smtp.php
@@ -6,7 +6,7 @@
     * | registered charities and educational institutes there is a reduced license   |
     * | fee available. You can read more  at:                                        |
     * |                                                                              |
-    * |                  https://www.phpguru.org/static/license.html                  |
+    * |                  http://www.phpguru.org/static/license.html                  |
     * o------------------------------------------------------------------------------o
     *
     * © Copyright 2008,2009 Richard Heyes