Description:
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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:
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<?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:
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Invalid e-mail address