I need some guidance,
I am getting internet from 2 different service providers, I have made a failover script. But i am now facing a new challenge. My emails (SMTP and POP3) ports are blocked by one ISP.
What I want to do is, make one ISP my primary (on port 1) which will cater internet traffic, but not SMTP and POP3, this will go via the secondary ISP.
But when the primary internet fails, the router should work as normal failover in this case it doesnt matter if emails works or not.