Hello,
I have add a rule that block tcp port 25 so it works fine but I want to relase an ip.
My network configuration are 10.10.10.0 I want to that 10.10.10.5 to get acces to this port.
Thanks
Just enter a rule allowing SMTP traffic from this ip addresse BEFORE the one denying all (other) SMTP traffic in your firewall queue, so for example:
/ip firewall rule forward add src-address=10.10.10.5/32 protocol=tcp dst-port=25 action=accept place-before=<wherever it sits before the deny-smtp-rule>
You could improve this by adding in-interface and out-interface specs etc., but this you give you the idea…