diff --git a/src/api/NB_Single.php b/src/api/NB_Single.php
index <HASH>..<HASH> 100644
--- a/src/api/NB_Single.php
+++ b/src/api/NB_Single.php
@@ -73,6 +73,10 @@ class NB_Single
      */

     public function verify($email)

     {

+        // Sanitize aliases; http_build_query does not encode (+) and

+        // x-www-urlencode-form treats these as spaces

+        $email = str_replace('+', '%2B', $email);

+

         $this->request('single', ['email' => $email]);

 

         return $this;
Adding sanitization to single verification method for aliases. The (+) in aliases gets treated as a space by default because http_build_query will not encode this character on it's own