diff --git a/ChangeLog b/ChangeLog
index 9f1ae0857a2..22b1631390f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,8 @@ English Dolibarr ChangeLog
 
 ***** ChangeLog for 3.7 compared to 3.6.* *****
 For users:
+- New: Match other auth system: Login can be done entering login or user 
+       email (this open the road for SSO).
 - New: Agenda export by project #1967.
 - New: Increase length of thirdparty to 128 chars.
 - New: "Is Order shippable" icon #1975.
diff --git a/htdocs/core/login/functions_dolibarr.php b/htdocs/core/login/functions_dolibarr.php
index d1555678313..8e5a8b13ea9 100644
--- a/htdocs/core/login/functions_dolibarr.php
+++ b/htdocs/core/login/functions_dolibarr.php
@@ -1,5 +1,5 @@
 <?php
-/* Copyright (C) 2007-2008 Laurent Destailleur  <eldy@users.sourceforge.net>
+/* Copyright (C) 2007-2014 Laurent Destailleur  <eldy@users.sourceforge.net>
  * Copyright (C) 2007-2009 Regis Houssin        <regis.houssin@capnetworks.com>
  * Copyright (C) 2010-2011 Juanjo Menent		<jmenent@2byte.es>
  *
@@ -20,7 +20,7 @@
 /**
  *      \file       htdocs/core/login/functions_dolibarr.php
  *      \ingroup    core
- *      \brief      Authentication functions for Dolibarr mode
+ *      \brief      Authentication functions for Dolibarr mode (check user on login or email and check pass)
  */
 
 
@@ -50,13 +50,15 @@ function check_user_password_dolibarr($usertotest,$passwordtotest,$entitytotest=
 	{
 		// If test username/password asked, we define $test=false and $login var if ok, set $_SESSION["dol_loginmesg"] if ko
 		$table = MAIN_DB_PREFIX."user";
-		$usernamecol = 'login';
+		$usernamecol1 = 'login';
+		$usernamecol2 = 'email';
 		$entitycol = 'entity';
 
-		$sql ='SELECT rowid, entity, pass, pass_crypted';
+		$sql ='SELECT rowid, login, entity, pass, pass_crypted';
 		$sql.=' FROM '.$table;
-		$sql.=' WHERE '.$usernamecol." = '".$db->escape($usertotest)."'";
-		$sql.=' AND '.$entitycol." IN (0," . ($entity ? $entity : 1) . ")";
+		$sql.=' WHERE ('.$usernamecol1." = '".$db->escape($usertotest)."'";
+		if (preg_match('/@/',$usertotest)) $sql.=' OR '.$usernamecol2." = '".$db->escape($usertotest)."'";
+		$sql.=') AND '.$entitycol." IN (0," . ($entity ? $entity : 1) . ")";
 
 		dol_syslog("functions_dolibarr::check_user_password_dolibarr", LOG_DEBUG);
 		$resql=$db->query($sql);
@@ -106,7 +108,7 @@ function check_user_password_dolibarr($usertotest,$passwordtotest,$entitytotest=
 				// Password ok ?
 				if ($passok)
 				{
-					$login=$usertotest;
+					$login=$obj->login;
 				}
 				else
 				{
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 6698866869e..51fa2cdf162 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1414,6 +1414,7 @@ function top_menu($head, $title='', $target='', $disablejs=0, $disablehead=0, $a
 	    $loginhtmltext.='<u>'.$langs->trans("User").'</u>';
 	    $loginhtmltext.='<br><b>'.$langs->trans("Name").'</b>: '.$user->getFullName($langs);
 	    $loginhtmltext.='<br><b>'.$langs->trans("Login").'</b>: '.$user->login;
+	    $loginhtmltext.='<br><b>'.$langs->trans("EMail").'</b>: '.$user->email;
 	    $loginhtmltext.='<br><b>'.$langs->trans("Administrator").'</b>: '.yn($user->admin);
 	    $type=($user->societe_id?$langs->trans("External").$company:$langs->trans("Internal"));
 	    $loginhtmltext.='<br><b>'.$langs->trans("Type").'</b>: '.$type;