diff --git a/config/settings.yml b/config/settings.yml
index e714cd3e9..255beab18 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -276,6 +276,7 @@ user-defaults:
   show-sex:            false
   exam-office-get-synced: true
   exam-office-get-labels: true
+  prefers-postal:      true
 
 # During central allocations lecturer-given ratings of applications (as
 # ExamGrades) are combined with a central priority.
diff --git a/src/Foundation/Yesod/Auth.hs b/src/Foundation/Yesod/Auth.hs
index e43fa0b7b..7d2c4be8a 100644
--- a/src/Foundation/Yesod/Auth.hs
+++ b/src/Foundation/Yesod/Auth.hs
@@ -291,7 +291,7 @@ decodeUser now UserDefaultConf{..} upsertMode ldapData = do
         , userMatrikelnummer          = Nothing -- not known from LDAP, must be derived from REST interface to AVS TODO
         , userPostAddress             = Nothing -- not known from LDAP, must be derived from REST interface to AVS TODO
         , userPinPassword             = Nothing -- must be derived via AVS
-        , userPrefersPostal           = False
+        , userPrefersPostal           = userDefaultPrefersPostal
         , ..
         }
       userUpdate =  [
diff --git a/src/Handler/Utils/Avs.hs b/src/Handler/Utils/Avs.hs
index 79835197e..20bb62ae6 100644
--- a/src/Handler/Utils/Avs.hs
+++ b/src/Handler/Utils/Avs.hs
@@ -318,7 +318,7 @@ upsertAvsUserById api = do
             , aufFPersonalNumber = avsInternalPersonalNo <$> canonical avsPersonInternalPersonalNo
             , aufFDepartment = Nothing
             , aufPostAddress = userFirmAddr
-            , aufPrefersPostal = isJust firmAddress
+            , aufPrefersPostal = True
             , aufPinPassword = userPin
             , aufEmail = fakeNo    -- Email is unknown in this version of the avs query, to be updated later (FUTURE TODO)
             , aufIdent = fakeIdent -- use AvsPersonId instead
diff --git a/src/Settings.hs b/src/Settings.hs
index 7d1274058..f31fe0f38 100644
--- a/src/Settings.hs
+++ b/src/Settings.hs
@@ -281,6 +281,7 @@ data UserDefaultConf = UserDefaultConf
   , userDefaultShowSex :: Bool
   , userDefaultExamOfficeGetSynced :: Bool
   , userDefaultExamOfficeGetLabels :: Bool
+  , userDefaultPrefersPostal :: Bool
   } deriving (Show)
 
 data PWHashConf = PWHashConf
diff --git a/test/Database/Fill.hs b/test/Database/Fill.hs
index 7fbe85af6..bcea55e67 100644
--- a/test/Database/Fill.hs
+++ b/test/Database/Fill.hs
@@ -199,7 +199,7 @@ fillDb = do
     , userCompanyDepartment = Just "AVN-AR2"
     , userPinPassword = Nothing
     , userPostAddress = Nothing
-    , userPrefersPostal = False
+    , userPrefersPostal = True
     , userExamOfficeGetSynced = userDefaultExamOfficeGetSynced
     , userExamOfficeGetLabels = userDefaultExamOfficeGetLabels
     }
diff --git a/test/User.hs b/test/User.hs
index 2fa5518e2..f863e1327 100644
--- a/test/User.hs
+++ b/test/User.hs
@@ -55,4 +55,4 @@ fakeUser adjUser = adjUser User{..}
     userCompanyDepartment = Nothing
     userPinPassword = Nothing
     userPostAddress = Nothing
-    userPrefersPostal = False
+    userPrefersPostal = userDefaultPrefersPostal