Of the following, which is the best method to address this?

An enterprise has two email domains but only one is covered by their LDAP directory. Of the following, which is the best method to address this?

A.
Create a mail policy for this domain that skips LDAP Accept checks.

B.
Disable LDAP verification in the HAT

C.
Configure Bypass LDAP Accept in the RAT

D.
Remove LDAP Acceptance from the incoming listener