Masquerading Local IP to Mailserver

RouterOS Scripting
1

Hello all

Trying to figure out how to make all Ips trying to send mail to SMTP from local ip 10.10.10.0/24 to masquerade it to a real IP how do i do that??

Thank you

Sarky

2

The following command should do it:

ip firewall src-nat add src-address=10.10.10.0/24 dst-port=25 protocol=tcp out-interface=uplink action=masquerade

Replace the uplink with the interface name of your internet uplink, like ether1 or whatever you have…

3

Thanks for the reply but now if the AP masquerades it, it will masq to its local IP too.

i am trying to change all my network to Use Fake IP just servers to use Real IP, if i open SMTP to take email from Fake IP some mail servers out somewhere will bounce them because those mail are originating from FAKE.

SArky