While it is not required, it is a good idea to save at least one default From line for your account. The From line should be no more than 200 characters and the correct format is "Company Name"<emailaddress>
- Go to Settings
- Select Account Management
- Click "Sender Addresses"
- Click the "Create Sender Address" button on the top right
- Enter Sender Name and Sender Address
- Check "Use as default sending address for this account" (optional)
- Click 'Ok' to save