How can a get to only allow a list of email addresses?

[mtabo]

Hi!
I am trying to use the plugin to only accept mails from a list of mail addresses but I am not succeeding, if possible I would appreciate the help.

This is my access.ini
[check]
any=false
conn=false
helo=false
mail=false
rcpt=true

[rcpt]
accept=true

[deny_msg]
conn=You are not allowed to connect
helo=That HELO is not allowed to connect
mail=That sender cannot send mail here
rcpt=That recipient is not allowed

And i create a rcpt_to.access.whitelist with a list of address in the form of

user1@domain.com
user2@domain.com

But isn't working as expected, what am I doing wrong?
Best Regards