diff --git a/app/templates/auth/change_password.html b/app/templates/auth/change_password.html
index 975e8bc9..2bec7762 100644
--- a/app/templates/auth/change_password.html
+++ b/app/templates/auth/change_password.html
@@ -1,9 +1,13 @@
 {% extends "base.html" %}
 {% import 'bootstrap/wtf.html' as wtf %}
 
-{% macro render_field(field) %}
+{% macro render_field(field, auth_name=None) %}
 <tr style="">
-    <td class="wtf-field">{{ field.label }}</td>
+    {%  if auth_name %}
+        <td class="wtf-field"> {{ field.label }}<span style="font-weight:700;"> ({{ auth_name }}):</span></td>
+    {% else %}
+        <td class="wtf-field">{{ field.label }}</td>
+    {%  endif %}
     <td class="wtf-field">{{ field(**kwargs)|safe }}
         {% if field.errors %}
         <ul class=errors>
@@ -20,16 +24,20 @@
 <h1>Modification du compte ScoDoc <tt>{{form.user_name.data}}</tt></h1>
     <div class="help">
     <p>Identifiez-vous avez votre mot de passe actuel</p>
-    <p>Vous pouvez changer le mot de passe et/ou l'adresse email.</p>
-    <p>Les champs vides ne seront pas changés.</p>
     </div>
     <form method=post>
             {{ form.user_name }}
             {{ form.csrf_token }}
         <table class="tf"><tbody>
-            {{ render_field(form.old_password, size=14, 
+            {{ render_field(form.old_password, size=14, auth_name=auth_username,
             style="padding:1px; margin-left: 1em; margin-top: 4px;") }}
-            {{ render_field(form.new_password, size=14, 
+            <tr>
+                <td colspan=""2">
+    <p>Vous pouvez changer le mot de passe et/ou l'adresse email.</p>
+    <p>Les champs laissés vides ne seront pas modifiés.</p>
+                </td>
+            </tr>
+            {{ render_field(form.new_password, size=14,
             style="padding:1px; margin-left: 1em; margin-top: 12px;") }}
             {{ render_field(form.bis_password, size=14, 
             style="padding:1px; margin-left: 1em; margin-top: 4px;") }}
diff --git a/app/templates/email/welcome.html b/app/templates/email/welcome.html
index 41ee5f65..41fb1c61 100644
--- a/app/templates/email/welcome.html
+++ b/app/templates/email/welcome.html
@@ -15,4 +15,6 @@
 <p>{{ url_for('auth.reset_password', token=token, _external=True) }}</p>
 {% endif %}
 
-<p>A bientôt !</p>
\ No newline at end of file
+<p>A bientôt !</p>
+
+<p>Ce message a été généré automatiquement par le serveur ScoDoc.</p>
\ No newline at end of file
diff --git a/app/templates/email/welcome.txt b/app/templates/email/welcome.txt
index b15bceae..2630a8bd 100644
--- a/app/templates/email/welcome.txt
+++ b/app/templates/email/welcome.txt
@@ -8,4 +8,6 @@ Votre identifiant de connexion est: {{ user.user_name }}
     {{ url_for('auth.reset_password', token=token, _external=True) }}
 {% endif %}
 
-<p>A bientôt !</p>
\ No newline at end of file
+A bientôt !
+
+Ce message a été généré automatiquement par le serveur ScoDoc.
\ No newline at end of file
diff --git a/app/views/users.py b/app/views/users.py
index 7a03a899..fed26e52 100644
--- a/app/views/users.py
+++ b/app/views/users.py
@@ -35,6 +35,7 @@ Emmanuel Viennet, 2021
 """
 import datetime
 import re
+from enum import auto, IntEnum
 from xml.etree import ElementTree
 
 import flask
@@ -116,6 +117,12 @@ class ChangePasswordForm(FlaskForm):
             raise ValidationError("Mot de passe actuel incorrect, ré-essayez")
 
 
+class Mode(IntEnum):
+    WELCOME_AND_CHANGE_PASSWORD = auto()
+    WELCOME_ONLY = auto()
+    SILENT = auto()
+
+
 @bp.route("/")
 @bp.route("/index_html")
 @scodoc
@@ -145,6 +152,8 @@ def user_info(user_name, format="json"):
 def create_user_form(user_name=None, edit=0, all_roles=1):
     "form. création ou edition utilisateur"
     auth_dept = current_user.dept
+    auth_username = current_user.user_name
+    from_mail = current_user.email
     initvalues = {}
     edit = int(edit)
     all_roles = int(all_roles)
@@ -529,19 +538,20 @@ def create_user_form(user_name=None, edit=0, all_roles=1):
                 )
                 return "\n".join(H) + msg + "\n" + tf[1] + F
             # Traitement initial (mode) : 3 cas
+            # cf énumération Mode
             # A: envoi de welcome + procedure de reset
             # B: envoi de welcome seulement (mot de passe saisie dans le formulaire)
             # C: Aucun envoi (mot de passe saisi dans le formulaire)
             if vals["welcome:list"] == "1":
                 if vals["reset_password:list"] == "1":
-                    mode = "A"
+                    mode = Mode.WELCOME_AND_CHANGE_PASSWORD
                 else:
-                    mode = "B"
+                    mode = Mode.WELCOME_ONLY
             else:
-                mode = "C"
+                mode = Mode.SILENT
 
             # check passwords
-            if mode == "A":
+            if mode == Mode.WELCOME_AND_CHANGE_PASSWORD:
                 vals["password"] = generate_password()
             else:
                 if vals["password"]:
@@ -567,14 +577,14 @@ def create_user_form(user_name=None, edit=0, all_roles=1):
             db.session.add(u)
             db.session.commit()
             # envoi éventuel d'un message
-            if mode == "A" or mode == "B":
-                if mode == "A":
+            if mode == Mode.WELCOME_AND_CHANGE_PASSWORD or mode == Mode.WELCOME_ONLY:
+                if mode == Mode.WELCOME_AND_CHANGE_PASSWORD:
                     token = u.get_reset_password_token()
                 else:
                     token = None
                 send_email(
                     "[ScoDoc] Création de votre compte",
-                    sender=current_app.config["ADMINS"][0],
+                    sender=from_mail,  # current_app.config["ADMINS"][0],
                     recipients=[u.email],
                     text_body=render_template("email/welcome.txt", user=u, token=token),
                     html_body=render_template(
@@ -787,7 +797,10 @@ def form_change_password(user_name=None):
         return redirect(destination)
 
     return render_template(
-        "auth/change_password.html", form=form, title="Modification compte ScoDoc"
+        "auth/change_password.html",
+        form=form,
+        title="Modification compte ScoDoc",
+        auth_username=current_user.user_name,
     )