diff --git a/app/email.py b/app/email.py
index cecaa68b9..5efe838fe 100644
--- a/app/email.py
+++ b/app/email.py
@@ -5,6 +5,7 @@
 # See LICENSE
 ##############################################################################
 
+import datetime
 from threading import Thread
 
 from flask import current_app, g
@@ -83,9 +84,12 @@ Adresses d'origine:
             \n\n"""
                 + msg.body
             )
-
+    now = datetime.datetime.now()
+    formatted_time = now.strftime("%Y-%m-%d %H:%M:%S") + ".{:03d}".format(
+        now.microsecond // 1000
+    )
     current_app.logger.info(
-        f"""email sent to{
+        f"""[{formatted_time}] email sent to{
             ' (mode test)' if email_test_mode_address else ''
         }: {msg.recipients}
         from sender {msg.sender}