diff --git a/src/frontend/plugins/mail-editor/mail-editor.component.html b/src/frontend/plugins/mail-editor/mail-editor.component.html
index 4c8dce8ca5e6537b7ea70a49a214fa8d9f5c93d2..c6e432e03b29594660bfd473eb64667e5c498170 100644
--- a/src/frontend/plugins/mail-editor/mail-editor.component.html
+++ b/src/frontend/plugins/mail-editor/mail-editor.component.html
@@ -40,6 +40,7 @@
                     ({{option.email}})</span>
             </mat-option>
         </mat-autocomplete>
+        <mat-hint [innerText]="'lang.separatorsEmail' | translate"></mat-hint>
     </mat-form-field>
     <mat-form-field *ngIf="showCopies">
         <span matPrefix class="mailLabel">{{'lang.copieShort' | translate}}&nbsp;:&nbsp;</span>
diff --git a/src/lang/lang-en.json b/src/lang/lang-en.json
index 22a41106d20ee8061d8f6dd83264a2972df77535..ab4337e37cda06ccfdaa3d9f7dd2f69ad6f8545c 100644
--- a/src/lang/lang-en.json
+++ b/src/lang/lang-en.json
@@ -2646,5 +2646,6 @@
     "chooseValues": "Choose the values",
     "chooseValuesMsg": "Please choose the values ​​that can be used for this field",
     "allDoctypes": "Add all doctypes",
-    "allDoctypesDesc": "This option enabled automatically adds new types to the list below"
+    "allDoctypesDesc": "This option enabled automatically adds new types to the list below",
+    "separatorsEmail": "The separators between email addresses are : , and ;"
 }
diff --git a/src/lang/lang-fr.json b/src/lang/lang-fr.json
index d117a4c8343e629feb537bb3bdffe0ab4f806c93..ad217db04fce09fcdb49506a4755f92c203a1dd9 100644
--- a/src/lang/lang-fr.json
+++ b/src/lang/lang-fr.json
@@ -2644,5 +2644,6 @@
     "chooseValues": "Choisir les valeurs",
     "chooseValuesMsg": "Veuillez choisir les valeurs pouvant être utilisées pour ce champ",
     "allDoctypes": "Ajouter tous les types",
-    "allDoctypesDesc": "Cette option activée permet d'ajouter automatiquement les nouveaux types à la liste ci-dessous"
+    "allDoctypesDesc": "Cette option activée permet d'ajouter automatiquement les nouveaux types à la liste ci-dessous",
+    "separatorsEmail": "Les séparateurs entre les adresses e-mails sont : , et ;"
 }