After I switched to NAT 1:1 my emails is send from default IP of username like it stop read /etc/mailips and /etc/mailhelo. I tried both IP inside /etc/mailips lan IP and public because I am not sure wich one is correct.
Do you have Send mail from account’s dedicated IP address enabled? This would cause those to be greyed out and it wouldn't reference /etc/mailips when that setting is selected.