Table columns are full

The database can run out of columns when you send large numbers of mailings or mailings with large numbers of links. This is a limitation of Microsoft Jet, the built-in database engine.

To free up space, you can either delete old mailings or upgrade to a more powerful database.

Delete old mailings

1. Click the Mailings tab
2. Select a few of the oldest mailings at the bottom of the list
3. Click Delete

Upgrade to a more powerful database