If you manage mailings with a diverse range of customers with various needs, Campaign Profiles could be a useful advanced feature for you. Campaign Profiles allow you to set different parameters for each mailing you send. A profile can set various parameters to override the account defaults. It can set values such as footer format and address, sending pool, and much more. This way you do not need to enter that information over and over again.
This feature needs to be enabled by customer service for Pro level accounts and is recommended for experienced mailers.
Once the setup is completed, the option to select a campaign profile will appear on the mailing details tab (pictured below). And all of the preset associated with that profile will be filled in.
You can review the settings for your campaign profiles by going to the Account Tab > Campaign Settings > Campaign profiles
From here you can view the details of your profiles and set one as a default.