Hi,

I have 2 ISP in 1 Mikrotik router:
ISP A: Download 3 Mbps + Upload 3 Mbps
ISP B: Download 3 Mbps + Upload 512 Kbps

I want all uploading email (yahoo mail) going through ISP A. Because ISP B upload is so slow and can make congestion issue.
While other traffic going through ISP A and B (using PCC in Mikrotik).

I already knew how to use PCC and load balance.

But I don't know how to seperate yahoo mail in Mikrotik. Is it with Layer7 ? or yahoo mail's IPs ? or other method ?
Please advice how to seperate yahoo mail traffic.

Regards