Hello, can I some how setup log, to follow the outgoing traffic on WAN port 25. I need to find probably infected device which one is sending spam mails via 25 port. Just blocking the outgoing traffic...

@CS2 Hello, the same here, but I am on Mesh connection, with constans -53db signal, so no wire between ER706W adn EAP650. N

@MR.S Based on your instruction I have successfully created my ACL rules, that working as is expected! Thank you MR.s! N

@MR.S Hello, thanks for your help to figure it out. I have changed the direction like above: so: Waited a minute and still can send mails... What have I missed?

@MR.S Hello! Thanks for the reply! I know that rules sequence is important. But currently I lost in the fist step, how to block any IP (lan, wifi) on the network using 25 port for WAN OUTgoing...

Hello! How can I set Gateway ACL to block outgoing SMTP traffic on the network (LAN, Wireless) expect the mail server with dedicated IP connected to gateways LAN port directly? As first to understand...