Add User.ignore_loop_email column

app/models.py

@@ -336,6 +336,12 @@ class User(db.Model, ModelMixin, UserMixin, PasswordOracle):
         db.Boolean, default=False, nullable=False, server_default="0"
     )
 
+    # ignore emails send from a mailbox to its alias. This can happen when replying all to a forwarded email
+    # can automatically re-includes the alias
+    ignore_loop_email = db.Column(
+        db.Boolean, default=False, nullable=False, server_default="0"
+    )
+
     @classmethod
     def create(cls, email, name="", password=None, **kwargs):
         user: User = super(User, cls).create(email=email, name=name, **kwargs)

migrations/versions/2021_091018_4d3f91ddf3e9_.py

@@ -0,0 +1,29 @@
+"""empty message
+
+Revision ID: 4d3f91ddf3e9
+Revises: 916a5257d18c
+Create Date: 2021-09-10 18:12:21.374836
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '4d3f91ddf3e9'
+down_revision = '916a5257d18c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('users', sa.Column('ignore_loop_email', sa.Boolean(), server_default='0', nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('users', 'ignore_loop_email')
+    # ### end Alembic commands ###