ItemChoice

ItemChoice enumeration (4 values)

Specifies property type which should be used for Exchange impersonation.

Value	Description
PrimarySmtpAddress	Specifies that primary Simple Mail Transfer Protocol (SMTP) address of the account should be used for Exchange impersonation.
PrincipalName	Specifies that user principal name (UPN) of the account should be used for Exchange impersonation.
SID	Specifies that security descriptor definition language (SDDL) form of the security identifier (SID) for the account should be used for Exchange impersonation.
SmtpAddress	Specifies that Simple Mail Transfer Protocol (SMTP) address of the account should be used for Exchange impersonation.