Hello Linda,
A hosting account with InMotion comes with email capabilities. This includes the ability to create multiple accounts for access for another user. There is no provision for you to charge someone for its use, so you'd have to make arrangements for that on your own. However, I will list a few articles that may help you with creating email accounts within your cPanel login.
Creating Email AccountsGetting started with emailEmail Educational channel
I hope this helps to clarify your question! Please let us know if you require further assistance.
If you have any further questions, please contact technical support available 24 hours a day / 7 days a week.
Arnel C.
InMotion Hosting
Community Support Team