Description:
------------
Since upgrading to PHP 5.2.6 I can no longer use a full email address.

When sending an email to "Joe Blogs <joe@example.com>" It fails with
"Invalid e-mail address". This is on a basic mail script.

It appears to be because PHP 5.2.6 reparses this as "<Joe Blogs
<joe@example.com>>". It tries to help and add more <> brackets than
necessary.

The only thing changed on my server is PHP. Others have reported the
problem on phpfreaks.com. I also tested on a freshly built virtual
server with the same results.

I also run wordpress which also fails when sending mails because of
this. If I write a script to just mailto "joe@example.com" without any
<> brackets it works fine but cannot use the name.


Reproduce code:
---------------
<?php

$mailto = "myemail@mydomain.com" ;
$subject = "Mintyslippers Feedback" ;

$messageproper = "Test";

mail($mailto, $subject, $messageproper,	"From: Test User
<test@theirdomain.com" );
?>

Expected result:
----------------
Sucessful email


Actual result:
--------------
Invalid e-mail address