LDAP question

[levykhtn_ironport]

Please help me to solve this issue, your help will be highly appreciated

User1 (user1@viking.com) send email to User2 (user2@viking.com), but User1 change Email Address and also Reply-To field to Boss@viking.com.
As the result, when the User2 reply to that email, email will be sent to Boss.

Question: I want to check field Email Address and Reply-To whether it match with account User1 in domain viking.com or not. If not then drop that email.

Thanks.

[kluu_ironport]

You'll want to implment "LDAP Accept" for the inbound listener on your C-series appliance. Log into the Support Portal and download the AsyncOS Advanced User Guide.

The PDF goes into detail on how to set up ldap and use the LDAP Accept to validate email addresses against an Active Directory/domain controller.