diff -r 76eb274011fd library/phpmailer/extras/ntlm_sasl_client.php
--- a/library/phpmailer/extras/ntlm_sasl_client.php	Wed Oct 01 14:29:58 2014 +0200
+++ b/library/phpmailer/extras/ntlm_sasl_client.php	Fri Oct 17 17:15:52 2014 +0200
@@ -23,12 +23,13 @@
 
 	Function Initialize(&$client)
 	{
+		if (!function_exists('hex2bin')) { function hex2bin($hex) { return pack('H*', $hex);} }
 		if(!function_exists($function="mcrypt_encrypt")
-		|| !function_exists($function="mhash"))
+		|| !function_exists($function="hash"))
 		{
 			$extensions=array(
 				"mcrypt_encrypt"=>"mcrypt",
-				"mhash"=>"mhash"
+				"hash"=>"hash"
 			);
 			$client->error="the extension ".$extensions[$function]." required by the NTLM SASL client class is not available in this PHP configuration";
 			return(0);
@@ -67,7 +68,7 @@
 	Function NTLMResponse($challenge,$password)
 	{
 		$unicode=$this->ASCIIToUnicode($password);
-		$md4=mhash(MHASH_MD4,$unicode);
+		$md4=hex2bin(hash('md4',$unicode));
 		$padded=$md4.str_repeat(chr(0),21-strlen($md4));
 		$iv_size=mcrypt_get_iv_size(MCRYPT_DES,MCRYPT_MODE_ECB);
 		$iv=mcrypt_create_iv($iv_size,MCRYPT_RAND);
@@ -182,4 +183,4 @@
 	}
 };
 
-?>
\ No newline at end of file
+?>