diff --git a/htdocs/core/class/CMailFile.class.php b/htdocs/core/class/CMailFile.class.php
index fc5dff72a69..eb15710eb7c 100644
--- a/htdocs/core/class/CMailFile.class.php
+++ b/htdocs/core/class/CMailFile.class.php
@@ -626,6 +626,7 @@ class CMailFile
 				}
 
 				// Force parameters
+				//dol_syslog("CMailFile::sendfile conf->global->".$keyforsmtpserver."=".$conf->global->$keyforsmtpserver." cpnf->global->".$keyforsmtpport."=".$conf->global->$keyforsmtpport, LOG_DEBUG);
 				if (!empty($conf->global->$keyforsmtpserver)) ini_set('SMTP', $conf->global->$keyforsmtpserver);
 				if (!empty($conf->global->$keyforsmtpport))   ini_set('smtp_port', $conf->global->$keyforsmtpport);