Last week I had an incident where Google DNS was briefly being Content Filtered under the category of Proxy Avoidance and Anonymizers. All the clients had no internet access when that happened. Meraki tech support said a third party controls the block list and basically said it wasn't their problem. ... View more

If you don't want to invest much, you could also split it up by port numbers.   For example:   www.domain.com goes to the web server (port 80). mail.domain.com:8080 (for example) goes to Exchange.   Forward by port number. You'll have to tell your users to append the :8080 when entering the URL. You'll have to configure Exchange's webmail to accept port 8080.   This is a workaround, but it won't cost you anything. ... View more