Click on Settings then SMS and Email settings.
SMS Settings
See how many credits you have spent and how many remain
Current SMS Users are listed.
Add a new SMS sender by clicking on Add and filling out the required information
Select which sender is the default with a green check
Edit current SMS users by clicking on the edit button and delete by clicking the rubbish bin
Email Settings
A list of current Email Senders are listed
Add a new email sender by clicking Add and then fill out the required information
Select which sender is the default with a green check
Edit current Email users by clicking on the edit button and delete by clicking the rubbish bin