diff --git a/core/admin/mailu/models.py b/core/admin/mailu/models.py
index 71c5f4d7..7e13682b 100644
--- a/core/admin/mailu/models.py
+++ b/core/admin/mailu/models.py
@@ -1,11 +1,11 @@
-from mailu import app, db, dkim, login_manager, quota
+from mailu import app, db, dkim, login_manager
 
 from sqlalchemy.ext import declarative
 from passlib import context, hash
 from datetime import datetime, date
 from email.mime import text
 
-
+import sqlalchemy
 import re
 import time
 import os
@@ -235,6 +235,7 @@ class User(Base, Email):
         backref=db.backref('users', cascade='all, delete-orphan'))
     password = db.Column(db.String(255), nullable=False)
     quota_bytes = db.Column(db.Integer(), nullable=False, default=10**9)
+    quota_bytes_used = db.Column(db.Integer(), nullable=False, default=0)
     global_admin = db.Column(db.Boolean(), nullable=False, default=False)
     enabled = db.Column(db.Boolean(), nullable=False, default=True)
 
@@ -266,8 +267,14 @@ class User(Base, Email):
         return self.email
 
     @property
-    def quota_bytes_used(self):
-        return quota.get(self.email + "/quota/storage") or 0
+    def destination(self):
+        if self.foward_enabled:
+            result = self.self.forward_destination
+            if self.forward_keep:
+                result += ',' + self.email
+            return result
+        else:
+            return self.email
 
     scheme_dict = {'SHA512-CRYPT': "sha512_crypt",
                    'SHA256-CRYPT': "sha256_crypt",
@@ -329,6 +336,17 @@ class Alias(Base, Email):
     wildcard = db.Column(db.Boolean(), nullable=False, default=False)
     destination = db.Column(CommaSeparatedList, nullable=False, default=[])
 
+    @classmethod
+    def resolve(cls, localpart, domain_name):
+        return cls.query.filter(
+            sqlalchemy._and(cls.domain_name == domain_name,
+                sqlalchemy._or(
+                    cls.localpart == localpart,
+                    cls.wildcard.like(localpart)
+                )
+            )
+        )
+
 
 class Token(Base):
     """ A token is an application password for a given user.
diff --git a/core/admin/migrations/versions/25fd6c7bcb4a_.py b/core/admin/migrations/versions/25fd6c7bcb4a_.py
new file mode 100644
index 00000000..cf9a0fc7
--- /dev/null
+++ b/core/admin/migrations/versions/25fd6c7bcb4a_.py
@@ -0,0 +1,28 @@
+""" Add a column for used quota
+
+Revision ID: 25fd6c7bcb4a
+Revises: 049fed905da7
+Create Date: 2018-07-25 21:56:09.729153
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '25fd6c7bcb4a'
+down_revision = '049fed905da7'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    with op.batch_alter_table('user') as batch:
+        batch.add_column(sa.Column('quota_bytes_used', sa.Integer(), nullable=False, server_default='0'))
+
+
+def downgrade():
+    with op.batch_alter_table('user') as batch:
+        batch.drop_column('user', 'quota_bytes_used')