diff --git a/dg_osm/db/__init__.py b/dg_osm/db/__init__.py
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diff --git a/dg_osm/db/core.py b/dg_osm/db/core.py
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diff --git a/dg_osm/db/models/__init__.py b/dg_osm/db/models/__init__.py
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diff --git a/dg_osm/db/models/contact_lists.py b/dg_osm/db/models/contact_lists.py
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diff --git a/dg_osm/db/models/mail_servers.py b/dg_osm/db/models/mail_servers.py
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diff --git a/dg_osm/db/models/mail_shots.py b/dg_osm/db/models/mail_shots.py
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