Search for messages by message id

Author: Webklex

CHANGELOG.md

@@ -9,10 +9,10 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 -NaN
 
 ### Added
--NaN
+- Search for messages by message id
 
 ### Affected Classes
--NaN
+- [Query::class](src/Query/Query.php)
 
 ### Breaking changes
 -NaN

src/Query/WhereQuery.php

@@ -413,6 +413,29 @@ public function whereIsXSpam(){
         return $this->where("CUSTOM X-Spam-Flag YES");
     }
 
+    /**
+     * Search for a specific header value
+     * @param $header
+     * @param $value
+     *
+     * @return WhereQuery
+     * @throws InvalidWhereQueryCriteriaException
+     */
+    public function whereHeader($header, $value){
+        return $this->where("CUSTOM HEADER $header $value");
+    }
+
+    /**
+     * Search for a specific message id
+     * @param $messageId
+     *
+     * @return WhereQuery
+     * @throws InvalidWhereQueryCriteriaException
+     */
+    public function whereMessageId($messageId){
+        return $this->whereHeader("Message-ID", $messageId);
+    }
+
     /**
      * @param $country_code
      *