This is one way to find public IP Ranges for email using DIG. This is used if you want to...
SPF’s are used to help mitigate SPAM emails. It basically dictates what happens when there’s a failure in a match...
This is a good doc from Google. Security Benefits Introduction: DNS security threats and mitigations Because of the open, distributed...
DNS name servers are usually split into two categories:...
Let’s talk about a topic that some people just don’t get, DNS. I’ll try to make is super simple to...