In Top Five Email Policy Considerations we mentioned that email retention is becoming a serious issue for regulated industries. As this CIO Magazine article points out, corporate email volume is expected to grow by 25 – 30 % annually through 2009, creating a massive problem for corporations who must be able to manage and search user email:
"Consider that over the next seven years, a company with 20,000 employees will have to save approximately 4.5 billion e-mails, and it must be able to search through them all to find messages relevant to a request for information in a matter of days or hours."
This is clearly going to be a huge challenge for IT departments worldwide.