You frequently use e-mail at your workplace, and notice that the delivery time is increasing for
messages you send to people outside of work. What is a possible cause for the slower delivery
time?

A.
The company firewall is serving as a bottleneck, slowing down e-mail delivery to outside
addresses.

B.
The people around you are using a different e-mail application, which slows mail-processing
time.

C.
The company mail server needs to be upgraded so it can process more external traffic.

D.
Increased network traffic within the company LAN is slowing delivery.