diff --git a/phpBB/includes/acp/acp_board.php b/phpBB/includes/acp/acp_board.php
index cec621e89d..e004d2e81f 100644
--- a/phpBB/includes/acp/acp_board.php
+++ b/phpBB/includes/acp/acp_board.php
@@ -449,7 +449,7 @@ class acp_board
 
 						'legend2'				=> 'SMTP_SETTINGS',
 						'smtp_delivery'			=> array('lang' => 'USE_SMTP',				'validate' => 'bool',	'type' => 'radio:yes_no', 'explain' => true),
-						'smtp_host'				=> array('lang' => 'SMTP_SERVER',			'validate' => 'string',	'type' => 'text:25:50', 'explain' => false),
+						'smtp_host'				=> array('lang' => 'SMTP_SERVER',			'validate' => 'string',	'type' => 'text:25:50', 'explain' => true),
 						'smtp_port'				=> array('lang' => 'SMTP_PORT',				'validate' => 'int:0:99999',	'type' => 'number:0:99999', 'explain' => true),
 						'smtp_auth_method'		=> array('lang' => 'SMTP_AUTH_METHOD',		'validate' => 'string',	'type' => 'select', 'method' => 'mail_auth_select', 'explain' => true),
 						'smtp_username'			=> array('lang' => 'SMTP_USERNAME',			'validate' => 'string',	'type' => 'text:25:255', 'explain' => true),
diff --git a/phpBB/language/en/acp/board.php b/phpBB/language/en/acp/board.php
index 8d6c1c141d..8b4db6a061 100644
--- a/phpBB/language/en/acp/board.php
+++ b/phpBB/language/en/acp/board.php
@@ -570,6 +570,7 @@ $lang = array_merge($lang, array(
 	'SMTP_PORT'						=> 'SMTP server port',
 	'SMTP_PORT_EXPLAIN'				=> 'Only change this if you know your SMTP server is on a different port.',
 	'SMTP_SERVER'					=> 'SMTP server address',
+	'SMTP_SERVER_EXPLAIN'			=> 'Note that you have to provide the protocol that your server uses. If you are using SSL, this has to be "ssl://your.mailserver.com"',
 	'SMTP_SETTINGS'					=> 'SMTP settings',
 	'SMTP_USERNAME'					=> 'SMTP username',
 	'SMTP_USERNAME_EXPLAIN'			=> 'Only enter a username if your SMTP server requires it.',