diff --git a/app/src/main/res/xml/providers.xml b/app/src/main/res/xml/providers.xml
index 5546d2c669..b0bfe32677 100644
--- a/app/src/main/res/xml/providers.xml
+++ b/app/src/main/res/xml/providers.xml
@@ -249,6 +249,7 @@
     </provider>
     <provider
         name="T-Online.de"
+        domain="magenta\\.de,t-online\\.de"
         link="https://www.telekom.de/hilfe/festnetz-internet-tv/e-mail/e-mail-server-e-mail-protokolle-und-e-mail-einrichtung/imap/einrichtung-imap">
         <imap
             host="secureimap.t-online.de"