Flow preferences Internet traffic 2 ISP's and Telnet 25

[GarageLand42]

We have 2 ISP's WAN1 and WAN2.   WAN1 is the Primary,  WAN2 is the Secondary.

All our internal devices are on the same vlan90. - Printers and PC's

The Printers need telnet port 25 capability to blahblah.onmicrosoft.pro.....  to send mail

WAN1 doesn't allow port 25 while WAN2 does.

Can I create a Flow Preferences , with the internal IP of the printer and destination of blahblah.mail.protect, peferered uplink WAN2

[Brash · Accepted solution]

Yes, you can use a flow preference for this.

However, you cannot use FQDN's for the destination. It needs to be either an IP or subnet in CIDR notation.

Also, in your example, the source port is unlikely to be 25. It will most likely be an ephemeral port number and therefore you're better off leaving it as Any.

More info at link below.

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/MX_Load_Balancing_and_Flow_Preferen...