client email domains (Fixes: #3887)

interface/web/mail/mail_domain_edit.php

@@ -241,7 +241,7 @@ class page_action extends tform_actions {
 		if($_SESSION["s"]["user"]["typ"] != 'admin') {
 			// Get the limits of the client
 			$client_group_id = $app->functions->intval($_SESSION["s"]["user"]["default_group"]);
-			$client = $app->db->queryOneRecord("SELECT limit_maildomain, default_mailserver FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $client_group_id);
+			$client = $app->db->queryOneRecord("SELECT client.mail_servers, limit_maildomain, default_mailserver FROM sys_group, client WHERE sys_group.client_id = client.client_id and sys_group.groupid = ?", $client_group_id);
 			// When the record is updated
 			if($this->id > 0) {
 				// restore the server ID if the user is not admin and record is edited