Create Bounce, TransactionalEmail models

app/models.py

@@ -2111,3 +2111,18 @@ class Metric(db.Model, ModelMixin):
     NB_VERIFIED_CUSTOM_DOMAIN = "nb_verified_custom_domain"
 
     NB_APP = "nb_app"
+
+
+class Bounce(db.Model, ModelMixin):
+    """Record all bounces. Deleted after 7 days
+    """
+
+    email = db.Column(db.String(256), nullable=False, index=True)
+
+
+class TransactionalEmail(db.Model, ModelMixin):
+    """Storing all email addresses that receive transactional emails, including account email and mailboxes.
+    Deleted after 7 days
+    """
+
+    email = db.Column(db.String(256), nullable=False, unique=True)

migrations/versions/2021_012609_74906d31d994_.py

@@ -0,0 +1,46 @@
+"""empty message
+
+Revision ID: 74906d31d994
+Revises: 2779eb90c6c4
+Create Date: 2021-01-26 09:53:58.010247
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '74906d31d994'
+down_revision = '2779eb90c6c4'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('bounce',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('created_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=False),
+    sa.Column('updated_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=True),
+    sa.Column('email', sa.String(length=256), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_bounce_email'), 'bounce', ['email'], unique=False)
+    op.create_table('transactional_email',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('created_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=False),
+    sa.Column('updated_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=True),
+    sa.Column('email', sa.String(length=256), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('email')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('transactional_email')
+    op.drop_index(op.f('ix_bounce_email'), table_name='bounce')
+    op.drop_table('bounce')
+    # ### end Alembic commands ###