Mail Process

I am wondering if anyone outsources their mail loan payment processing? If so, could you tell me who you use and how satisfied you are with their services? Has moving this process to a third party saved your organization time and money?

For those of you whose credit union completes the process in house, could you please share your current process? The information I am looking for include:

1. Who/what department picks up the mail
2. Who/what department sorts it
3. Are the payments logged
4. Who/what department processes the payment transactions
5. What internal controls are in place during this process

Any information would be greatly appreciated.