Since we only had a few employees then, it was a cost-effective option for us rather than getting our own e-mail server solution.
The attached drawings are usually big, sometimes more than 10 megabytes. Now, they can just drop it into the mailbox and it will be sent directly to the colleague.
It took just about a week to set up the system and move existing e-mail from staff PCs and the hosting service server to the new Exchange Server at our KL office.
So, employees can just erase important business e-mail when they decide to resign and we cannot retrieve the information.