Email doesn’t inherit authentication. Without DMARC enforcement, any SMTP server can use your business domain name to send out email.
Did you know your emails might be getting sent without TLS encryption? Make TLS encryption a requirement for all emails using our free MTA-STS Record Generator tool to stop hackers from reading your messages. Create the record on your DNS and publish it to begin deploying MTA-STS!
What is MTA-STS?
It is an inbound mail protocol developed to increase the security and encryption between sending and receiving mail servers.
What is the objective of MTA-STS?
To make it more difficult for an attacker to have emails forwarded to a different destination.
How to implement MTA-STS?
Create the subdomain MTA-STS? Along with a directory named .well-known in the subdomain. Then upload the policy text file to the .well-known directory of the subdomain.