diff --git a/core/admin/mailu/internal/views.py b/core/admin/mailu/internal/views.py
index 2a71e786..fff9b481 100644
--- a/core/admin/mailu/internal/views.py
+++ b/core/admin/mailu/internal/views.py
@@ -52,6 +52,18 @@ def basic_authentication():
     return response
 
 
+@internal.route("/postfix/domain/<domain_name>")
+def postfix_mailbox_domain(domain_name):
+    domain = models.Domain.query.get(domain_name) or flask.abort(404)
+    return flask.jsonify(domain.name)
+
+
+@internal.route("/postfix/mailbox/<email>")
+def postfix_mailbox_map(email):
+    user = models.User.query.get(email) or flask.abort(404)
+    return flask.jsonify(user.email)
+
+
 @internal.route("/postfix/alias/<alias>")
 def postfix_alias_map(alias):
     localpart, domain = alias.split('@', 1) if '@' in alias else (None, alias)
@@ -60,35 +72,25 @@ def postfix_alias_map(alias):
         domain = alternative.domain_name
     email = '{}@{}'.format(localpart, domain)
     if localpart is None:
-        return domain
+        return flask.jsonify(domain)
     else:
         alias_obj = models.Alias.resolve(localpart, domain)
         if alias_obj:
-            return alias_obj.destination
+            return flask.jsonify(alias_obj.destination)
         user_obj = models.User.query.get(email)
         if user_obj:
-            return user_obj.destination
-        flask.abort(404)
+            return flask.jsonify(user_obj.destination)
+        return flask.abort(404)
 
 
-@internal.route("/postfix/alias/domain/<domain>")
-def postfix_alias_domain(domain):
-    pass
+@internal.route("/postfix/spoofed/<email>")
+def postfix_spoofed(email):
+    return flask.abort(404)
 
 
-@internal.route("/postfix/alias/map/<alias>")
-def postfix_alias_map(alias):
-    pass
-
-
-@internal.route("/postfix/mailbox/domain/<domain>")
-def postfix_mailbox_domain(domain):
-    pass
-
-
-@internal.route("/postfix/mailbox/map/<mailbox>")
-def postfix_mailbox_map(domain):
-    pass
+@internal.route("/postfix/transport/<email>")
+def postfix_transport(email):
+    return flask.abort(404)
 
 
 @internal.route("/dovecot/auth/passdb/<user_email>")
diff --git a/core/admin/mailu/models.py b/core/admin/mailu/models.py
index 7e13682b..ec94f989 100644
--- a/core/admin/mailu/models.py
+++ b/core/admin/mailu/models.py
@@ -268,7 +268,7 @@ class User(Base, Email):
 
     @property
     def destination(self):
-        if self.foward_enabled:
+        if self.forward_enabled:
             result = self.self.forward_destination
             if self.forward_keep:
                 result += ',' + self.email
@@ -339,13 +339,13 @@ class Alias(Base, Email):
     @classmethod
     def resolve(cls, localpart, domain_name):
         return cls.query.filter(
-            sqlalchemy._and(cls.domain_name == domain_name,
-                sqlalchemy._or(
+            sqlalchemy.and_(cls.domain_name == domain_name,
+                sqlalchemy.or_(
                     cls.localpart == localpart,
                     cls.wildcard.like(localpart)
                 )
             )
-        )
+        ).first()
 
 
 class Token(Base):
diff --git a/core/postfix/start.py b/core/postfix/start.py
index 38905224..a4af9328 100755
--- a/core/postfix/start.py
+++ b/core/postfix/start.py
@@ -15,7 +15,7 @@ def start_podop():
     run_server(40, "postfix", "/tmp/podop.socket", [
 		("transport", "url", "http://admin/internal/postfix/transport/§"),
 		("alias", "url", "http://admin/internal/postfix/alias/§"),
-		("domains", "url", "http://admin/internal/postfix/domains/§"),
+		("domain", "url", "http://admin/internal/postfix/domain/§"),
         ("mailbox", "url", "http://admin/internal/postfix/mailbox/§"),
         ("spoofed", "url", "http://admin/internal/postfix/spoofed/§"),
     ])