diff --git a/app/src/main/res/values-de-rDE/strings.xml b/app/src/main/res/values-de-rDE/strings.xml
index 8a4245ab96..81deb6875d 100644
--- a/app/src/main/res/values-de-rDE/strings.xml
+++ b/app/src/main/res/values-de-rDE/strings.xml
@@ -80,7 +80,7 @@
     <string name="title_edit_folder">Ordner bearbeiten</string>
     <string name="title_setup">Einstellungen</string>
     <string name="title_setup_help">Hilfe</string>
-    <string name="title_setup_welcome">Das Empfangen und Senden von Nachrichten erfordert die Einrichtung eines Kontos und einer E-Mail-Adresse, wie in jeder anderen E-Mail-Anwendung.</string>
+    <string name="title_setup_welcome">Das Empfangen und Senden von Nachrichten erfordert die Einrichtung eines Kontos und einer Identität, wie in jeder anderen E-Mail-Anwendung.</string>
     <string name="title_setup_quick">Schnelleinrichtung</string>
     <string name="title_setup_quick_remark">Um schnell ein Konto und eine Identität für die meisten Anbieter einzurichten</string>
     <string name="title_setup_quick_hint">Die Schnelleinrichtung wird Konfigurationsinformationen von autoconfig.thunderbird.net laden</string>
@@ -142,6 +142,7 @@
     <string name="title_advanced_schedule">Zeitplan</string>
     <string name="title_advanced_unseen">Alle ungelesenen Nachrichten</string>
     <string name="title_advanced_flagged">Alle gekennzeichneten Nachrichten</string>
+    <string name="title_advanced_delete_unseen">Alte ungelesene Nachrichten löschen</string>
     <string name="title_advanced_kept_removed">Überprüfen, ob alte Nachrichten vom Server entfernt wurden</string>
     <string name="title_advanced_sync_folders">Ordnerliste synchronisieren</string>
     <string name="title_advanced_keyboard">Tastatur immer anzeigen</string>
diff --git a/app/src/main/res/values-fi-rFI/strings.xml b/app/src/main/res/values-fi-rFI/strings.xml
index 273ab9a20f..a074e97be4 100644
--- a/app/src/main/res/values-fi-rFI/strings.xml
+++ b/app/src/main/res/values-fi-rFI/strings.xml
@@ -142,6 +142,7 @@
     <string name="title_advanced_schedule">Aikataulu</string>
     <string name="title_advanced_unseen">Kaikki lukemattomat viestit</string>
     <string name="title_advanced_flagged">Kaikki tähdelliset viestit</string>
+    <string name="title_advanced_delete_unseen">Poista vanhat lukemattomat viestit</string>
     <string name="title_advanced_kept_removed">Tarkista onko vanhoja viestejä poistettu palvelimelta</string>
     <string name="title_advanced_sync_folders">Synkronoi kansiolista</string>
     <string name="title_advanced_keyboard">Näytä näppäimistö oletuksena</string>
diff --git a/app/src/main/res/values-fr-rFR/strings.xml b/app/src/main/res/values-fr-rFR/strings.xml
index 1779f78112..9e9a605a34 100644
--- a/app/src/main/res/values-fr-rFR/strings.xml
+++ b/app/src/main/res/values-fr-rFR/strings.xml
@@ -80,7 +80,7 @@
     <string name="title_edit_folder">Modifier le dossier</string>
     <string name="title_setup">Configuration</string>
     <string name="title_setup_help">Aide</string>
-    <string name="title_setup_welcome">La réception et l\'envoi de messages nécessitent la création d\'un compte et d\'une identité comme dans toute autre application de courriel.</string>
+    <string name="title_setup_welcome">La réception et l\'envoi de messages nécessitent la création d\'un compte et d\'une identité comme dans toute autre application de messagerie.</string>
     <string name="title_setup_quick">Configuration rapide</string>
     <string name="title_setup_quick_remark">Pour configurer rapidement un compte et une identité pour la plupart des fournisseurs</string>
     <string name="title_setup_quick_hint">La configuration rapide récupérera les informations de configuration de autoconfig.thunderbird.net</string>
@@ -142,6 +142,7 @@
     <string name="title_advanced_schedule">Planification</string>
     <string name="title_advanced_unseen">Tous les messages non lus</string>
     <string name="title_advanced_flagged">Tous les messages suivis</string>
+    <string name="title_advanced_delete_unseen">Supprimer les anciens messages non lus</string>
     <string name="title_advanced_kept_removed">Vérifier si les anciens messages ont été supprimés du serveur</string>
     <string name="title_advanced_sync_folders">Synchroniser la liste des dossiers</string>
     <string name="title_advanced_keyboard">Afficher le clavier par défaut</string>
diff --git a/app/src/main/res/values-it-rIT/strings.xml b/app/src/main/res/values-it-rIT/strings.xml
index a52f6ceb54..232c478ee4 100644
--- a/app/src/main/res/values-it-rIT/strings.xml
+++ b/app/src/main/res/values-it-rIT/strings.xml
@@ -142,6 +142,7 @@
     <string name="title_advanced_schedule">Pianificazione</string>
     <string name="title_advanced_unseen">Tutti i messaggi non letti</string>
     <string name="title_advanced_flagged">Tutti i messaggi preferiti</string>
+    <string name="title_advanced_delete_unseen">Elimina i vecchi messaggi non letti</string>
     <string name="title_advanced_kept_removed">Controlla se i vecchi messaggi sono stati rimossi dal server</string>
     <string name="title_advanced_sync_folders">Sincronizza elenco cartelle</string>
     <string name="title_advanced_keyboard">Mostra tastiera di default</string>
diff --git a/app/src/main/res/values-nl-rNL/strings.xml b/app/src/main/res/values-nl-rNL/strings.xml
index 259977e8bc..d9120ee6d3 100644
--- a/app/src/main/res/values-nl-rNL/strings.xml
+++ b/app/src/main/res/values-nl-rNL/strings.xml
@@ -142,6 +142,7 @@
     <string name="title_advanced_schedule">Schema</string>
     <string name="title_advanced_unseen">Alle ongelezen berichten</string>
     <string name="title_advanced_flagged">Alle berichten met een ster</string>
+    <string name="title_advanced_delete_unseen">Verwijder oude, ongelezen berichten</string>
     <string name="title_advanced_kept_removed">Controleer of oude berichten van de server werden verwijderd</string>
     <string name="title_advanced_sync_folders">Lijst met mappen synchroniseren</string>
     <string name="title_advanced_keyboard">Toon standaard het toetsenbord</string>