There has been a great deal of talk about how great email encryption can be for eliminating security vulnerabilities, assessing sender authentication and protecting confidential corporate data. But as some expert relate, if done wrong, encryption can crash the email system. The big mistake is doing a deployment without some investigating, planning and testing. Another big lesson learned is that while many IT leaders think encryption is a cheap approach, often it's not, as some companies have learned the hard way. Yet if done right it can deliver on all it promises, say tech leaders.

For more on making email encryption work well:
- read this News.com article