May be you already know what is message but in technical term it is a communication containing some information, news, advice, request, or the like, sent by internal message in Epan.
Using of internal message services your business have some advantages, i.e. :
1. It can be used for intra - company communications, marketing purposes and coordinating with employees.
2. Some common advantages of this internal message over traditional communications between company's employees are more beneficiary.
Now use the internal message services you have to click on "Messages" (available at side bar menu).
You can compose message by feeding proper info(like To, Subject, message etc) here.
After communication you can view message list.
Now you have know that how to use InternalMessage in Epan.