For optimized encrypted MAPI, is the inner channel encrypted by default?

For optimized encrypted MAPI, is the inner channel encrypted by default?
A . Yes, always
B . No
C . Only for MS Exchange 2003 and later
D . Yes, but this is configured on the server

View Answer

Answer: B

Explanation:

Reference: https://support.riverbed.com/bin/support/static/d6j3tb1i55ni1erbjp6e3fln9v/html/mhmppa9t9gq3laicvt0r91b1n7/sh_cx_9.2_ug_html/index.html#page/sh_cx_9.2_ug/setupServiceProtocolsMAPI.html