Enforcing match between the FROM address (reject authenticated sender login mismatch

Dear Cine,

I am doing testing on zimbra open source 8.0.3 . If a user's password is compromised, the Server default setup allows the user to relay emails using a different email address than the one uses to authenticate with smtp i.e (reject_authenticated_sender_login_mismatch). i want to reject those mails.

I have refer bellow link

Enforcing a match between the FROM address and the sasl username - Zimbra :: Wiki

Kindly give me steps.

Thanks,
shashikant sutar