The average corporate email user sends and receives 84 emails a day, equating to 10MB of storage each day. This number is expected to rise to 15.8 MB per user, per day by 2008. E-mail retention should be considered a necessary step in protecting your corporation from future litigation issues and sanctions. Morgan Stanley is now leading the way in these practices in hope of avoiding further litigation and fines for not having proper email retention policies in place. Data management solutions and various third party vendors are popping up everyday in this arena.”]
Source: https://www.cuinfosecurity.com/does-e-mail-retention-require-your-attention-a-290