Audit Bypass
The File Access Manager Connector for Exchange sets the mailbox audit for the selected mailboxes according to the configuration in the Application. However, there are application service accounts (for example, BlackBerry or IXOS) which create many mailbox audit log entries that overload the Exchange and create a lot of noise in File Access Manager.
You can configure a user or computer account to bypass mailbox audit logging, so that actions taken by that user or account for any mailbox are not logged.
By bypassing a trusted user or computer accounts that require frequent access to mailboxes, you can reduce the noise in mailbox audit logs.
For more information, see:
https://technet.microsoft.com/en-us/library/ff461934%28v=exchg.150%29.aspx
It is recommended to set an alert on bypass commands to verify that users are not bypassed unexpectedly.