diff --git a/tools/fill_emails_from_contacts.py b/tools/fill_emails_from_contacts.py
index 18bca29..21d4a68 100644
--- a/tools/fill_emails_from_contacts.py
+++ b/tools/fill_emails_from_contacts.py
@@ -23,6 +23,28 @@ def normalize(s):
     return " ".join(ascii_str.split())
 
 
+def synth_email(name):
+    """Genere prenom.nom@sanef.com a partir d'un nom complet.
+    'Frédéric GRAFFAGNINO' -> 'frederic.graffagnino@sanef.com'
+    'Pierre-Louis THOUVENOT' -> 'pierre-louis.thouvenot@sanef.com'
+    """
+    if not name:
+        return None
+    norm = normalize(name)
+    parts = [p for p in norm.split() if p]
+    if len(parts) < 2:
+        return None
+    first = parts[0]
+    last = parts[-1]
+    # Nettoie caracteres parasites (garde lettres + tiret + apostrophe)
+    import re
+    first = re.sub(r"[^a-z\-']", "", first)
+    last = re.sub(r"[^a-z\-']", "", last)
+    if not first or not last:
+        return None
+    return f"{first}.{last}@sanef.com"
+
+
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument("--dry-run", action="store_true")
@@ -52,7 +74,7 @@ def main():
     print(f"[INFO] {len(rows)} (dom,env) a completer")
 
     updated = 0
-    unmatched = set()
+    from_contacts = synth = 0
     for r in rows:
         updates = {}
         if r.responsable_nom and not (r.responsable_email or "").strip():
@@ -60,15 +82,23 @@ def main():
             email = name_to_email.get(key)
             if email:
                 updates["responsable_email"] = email
-            elif key:
-                unmatched.add(r.responsable_nom)
+                from_contacts += 1
+            else:
+                synth_e = synth_email(r.responsable_nom)
+                if synth_e:
+                    updates["responsable_email"] = synth_e
+                    synth += 1
         if r.referent_nom and not (r.referent_email or "").strip():
             key = normalize(r.referent_nom)
             email = name_to_email.get(key)
             if email:
                 updates["referent_email"] = email
-            elif key:
-                unmatched.add(r.referent_nom)
+                from_contacts += 1
+            else:
+                synth_e = synth_email(r.referent_nom)
+                if synth_e:
+                    updates["referent_email"] = synth_e
+                    synth += 1
 
         if not updates:
             continue
@@ -81,10 +111,8 @@ def main():
         updated += 1
 
     conn.close()
-    print(f"\n[DONE] Maj: {updated}")
-    if unmatched:
-        print(f"[WARN] Noms sans match dans contacts ({len(unmatched)}) : "
-              f"{sorted(unmatched)[:10]}...")
+    print(f"\n[DONE] Maj: {updated} | depuis contacts: {from_contacts} | "
+          f"synthetises (prenom.nom@sanef.com): {synth}")
 
 
 if __name__ == "__main__":