Airport Extreme guest network: any way to block SMTP or other ports?

[kj4btkljv]

Doesn't look like the Airport Extreme can be set to block ANY outgoing ports, like you said.

So, get rid of the Airport Extreme and get a router that has the port blocking options, and has support for a guest network.

This one might work, but I'd check with the manufacturer first:
http://www.newegg.com/Product/Product.as...6833704206

Jeff