The DNS MX record is one of the most applied DNS records out there. If you don’t have one, you simply can’t be sure that you will receive any emails! This is because you need the DNS MX record to signal to the rest of the servers on the Internet, which is exactly your mail server responsible for receiving emails for the particular domain. So, let’s explain more about how important is the DNS MX record!
The DNS CAA record helps domain name owners to take control over SSL certificates. So, you can determine which CA is authorized to issue them and also what kind of type of certificate.
The DNS CAA record was first defined in 2013. From September 2017, Certificate Authorities are obliged to check it before issuing any certificate.
So, let’s explain a little bit more about the DNS CAA record.
TXT record is a DNS record type. It contains text information created for external to the domain sources. The text can be written for people, so it would be easy to read, has complete information and logically organized, or made for computers, and has a more technical format.
SPF means Sender Policy Framework. This DNS record is in itself a system that validates legitimate emails. In addition, the SPF record identifies the mail servers authorized to send emails in your company’s name (domain). Thus, it improves the trustability of your email server while preventing domain spoofing.