Index: branches/5.2.x/core/kernel/utility/email_send.php
===================================================================
diff -u -N -r15461 -r16199
--- branches/5.2.x/core/kernel/utility/email_send.php	(.../email_send.php)	(revision 15461)
+++ branches/5.2.x/core/kernel/utility/email_send.php	(.../email_send.php)	(revision 16199)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: email_send.php 15461 2012-07-18 14:18:30Z alex $
+* @version	$Id: email_send.php 16199 2015-05-25 01:20:38Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -1958,6 +1958,69 @@
 		}
 
 		/**
+		 * Returns list of recipients from given header.
+		 *
+		 * @param string $header_name Header name.
+		 *
+		 * @return array
+		 */
+		public function GetRecipientsByHeader($header_name)
+		{
+			if ( !isset($this->headers[$header_name]) ) {
+				return array();
+			}
+
+			$decoded_header = $this->decodeHeader($this->headers[$header_name]);
+			$recipients = $this->GetRecipients($decoded_header);
+
+			if ( $recipients === false ) {
+				return array();
+			}
+
+			return $recipients;
+		}
+
+		/**
+		 * Decodes header value.
+		 *
+		 * @param string $header_value Header value.
+		 *
+		 * @return string
+		 */
+		protected function decodeHeader($header_value)
+		{
+			while ( preg_match('/(=\?([^?]+)\?(Q|B)\?([^?]*)\?=)/i', $header_value, $matches) ) {
+				$encoded = $matches[1];
+				$charset = $matches[2];
+				$encoding = $matches[3];
+				$text = $matches[4];
+
+				switch ( strtoupper($encoding) ) {
+					case 'B':
+						$text = base64_decode($text);
+						break;
+
+					case 'Q':
+						$text = str_replace('_', ' ', $text);
+						preg_match_all('/=([a-f0-9]{2})/i', $text, $matches);
+
+						foreach ( $matches[1] as $value ) {
+							$text = str_replace('=' . $value, chr(hexdec($value)), $text);
+						}
+						break;
+				}
+
+				$header_value = mb_convert_encoding(
+					str_replace($encoded, $text, $header_value),
+					$this->charset,
+					$charset
+				);
+			}
+
+			return $header_value;
+		}
+
+		/**
 		 * Sets "Subject" header.
 		 *
 		 * @param string $subject message subject
@@ -2084,4 +2147,4 @@
 		{
 			$this->_logData = $log_data;
 		}
-	}
\ No newline at end of file
+	}