diff --git a/htdocs/emailcollector/class/emailcollector.class.php b/htdocs/emailcollector/class/emailcollector.class.php
index 21aec87bc9fe2..25cc8a45fe7e7 100644
--- a/htdocs/emailcollector/class/emailcollector.class.php
+++ b/htdocs/emailcollector/class/emailcollector.class.php
@@ -1683,6 +1683,7 @@ public function doCollectOneCollector($mode = 0)
 					$operationslog .= " - ".dol_escape_htmltag((string) $imapemail);
 				}
 				$operationslog .= " - References: ".dol_escape_htmltag($headers['References']??'')." - Subject: ".dol_escape_htmltag($headers['Subject']);
+
 				dol_syslog("** Process email ".$iforemailloop." References: ".($headers['References']??'')." Subject: ".$headers['Subject']);
 
 
@@ -1703,7 +1704,7 @@ public function doCollectOneCollector($mode = 0)
 					if (empty($trackidfoundintorecipienttype)) {
 						if (empty($headers['References']) || !preg_match('/@'.preg_quote($host, '/').'/', $headers['References'])) {
 							$nbemailprocessed++;
-							dol_syslog(" Discarded - No suffix in email recipient and no Header References found matching signature of application so with a trackid");
+							dol_syslog(" Discarded - No suffix in email recipient and no Header References found matching the signature of the application, so with a trackid coming from the application");
 							continue; // Exclude email
 						}
 					}
@@ -2048,7 +2049,7 @@ public function doCollectOneCollector($mode = 0)
 							 }*/
 						} elseif (preg_match('/<(.*@.*)>/', $reference, $reg)) {
 							// This is an external reference, we check if we have it in our database
-							if (!is_object($objectemail)) {
+							if (!is_object($objectemail) && isModEnabled('ticket')) {
 								$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."ticket where email_msgid = '".$this->db->escape($reg[1])."'";
 								$resql = $this->db->query($sql);
 								if ($resql) {
@@ -2063,7 +2064,7 @@ public function doCollectOneCollector($mode = 0)
 								}
 							}
 
-							if (!is_object($objectemail)) {
+							if (!is_object($objectemail) && isModEnabled('project')) {
 								$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."projet where email_msgid = '".$this->db->escape($reg[1])."'";
 								$resql = $this->db->query($sql);
 								if ($resql) {
@@ -2078,7 +2079,7 @@ public function doCollectOneCollector($mode = 0)
 								}
 							}
 
-							if (!is_object($objectemail)) {
+							if (!is_object($objectemail) && isModEnabled('recruitment')) {
 								$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."recruitment_recruitmentcandidature where email_msgid = '".$this->db->escape($reg[1])."'";
 								$resql = $this->db->query($sql);
 								if ($resql) {