diff --git a/app/src/main/res/xml/providers.xml b/app/src/main/res/xml/providers.xml
index 7e6df2579d..48910d823a 100644
--- a/app/src/main/res/xml/providers.xml
+++ b/app/src/main/res/xml/providers.xml
@@ -338,6 +338,7 @@
     </provider>
     <provider
         name="Ionos (1und1)"
+        appPassword="true"
         domain="ionos\\.de,ionos\\.com,online\\.de"
         keepalive="12"
         link="https://www.ionos.de/hilfe/e-mail/allgemeine-themen/einstellungen-fuer-ihr-e-mail-programm/">