I recently started employing the Barracuda Cloud Protection Layer to filter inbound email. I've waited now 7 days since changing our public MX records. Mail is flowing fine, there's no problem with that. Today I changed our MX100 firewall NAT rule such that SMTP port 25/587 traffic is now only being accepted from Barracuda's IP ranges. Mail is still flowing fine. What I would like to do now, however, is monitor inbound port 25 traffic, to see if any legit mail from our customers or vendors is being blocked. I know that changing public MX records can take sometimes crazy amounts of time to propagate based on doing this at a former employer. Believe it or not back then (6 years ago) I was still seeing legit SMTP traffic coming in from customers and vendors a full month after having made the public DNS change. I'd like to avoid the possibility of losing revenue due to anti-spam policies. How can I monitor this inbound SMTP traffic via the Meraki Dashboard? Also is there any way to see past SMTP inbound traffic, via report or some other mechanism? TIA ... View more