wp_mail() problem with Reply-To header

[pavelevap]

I am using in email headers also Reply-To:

$headers .= "Reply-To: \"$name\" <$email>\r\n";

But there is a problem when name contains special non-English characters.

Example (from email headers):

Name: Žlutý kůň

Reply-To: =?UTF-8?Q? "=C5=BDlut=C3=BD_k=C5=AF=C5=88" _ <my@email.com>,
  ?=@example.com

I think that it is somehow related to wp_mail() function, because I also tried to use SMTP plugin and it worked well:

Reply-To: =?UTF-8?Q?"=C5=BDlut=C3=BD_k=C5=AF=C5=88"_<my@email.com>?=

Also when I use simply mail() instead of wp_mail() then everything works well. Problem can be seen only for Reply-To header, all others work well (for example From).

I am using WP 3.4.1.