Introducing PowerMTA-STS

Deploy MTA-STS with PowerDMARC’s hosted MTA-STS Services

Contact us How Does MTA-STS Work?

What is MTA-STS?

An internet standard that functions by improving the security of connections between SMTP (Simple Mail Transfer Protocol) servers is the SMTP Mail Transfer Agent-Strict Transport Security (MTA-STS). MTA-STS works by enforcing TLS encryption of emails delivered to your domain so as to transport messages over a secured connection so that messages are not delivered in cleartext, effectively mitigating existing security problems in SMTP servers that enables opportunistic encryption.

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The DNS Lookup Limit

PowerDMARC’s Hosted MTA-STS Services

Easy and Speedy Deployment of MTA-STS by PowerDMARC 

PowerDMARC makes your life a whole lot easier with our hosted MTA-STS services, wherein:

  • We help you publish your DNS CNAME records with just a few clicks

  • We take the responsibility of maintaining the policy web server and hosting the certificates

  • Through our hosted MTA-STS services, deployment on your part is reduced to simply publishing a  few DNS records

  • You can make MTA-STS policy changes instantly and with ease, through the PowerDMARC dashboard, without having to manually make changes to the DNS

  • PowerDMARC’s hosted MTA-STS services are RFC compliant and support the latest TLS standards

  • From generating certificates and MTA-STS policy file to policy enforcement, we help you evade the tremendous complexities involved in adopting the protocol

The DNS Lookup Limit

How Does MTA-STS Work?

MTA-STS secures email delivery by: 

  • Enforcing TLS encryption
  • Serving the MX records from an HTTPS-secure server

The MTA-STS protocol specifies to an SMTP sending server that emails addressed to your domain must be sent over a TLS-encrypted connection. In case an encrypted channel cannot be negotiated, the email is not delivered at all, instead of being delivered as cleartext.

View our detailed guide on MTA-STS to learn more!

Did you know that major mail service providers such as Microsoft, Oath, and Google support MTA-STS?

One-Click Optimizer

Why Do You Need MTA-STS?

MTA-STS Offers Protection Against :

  • Pervasive monitoring MITM attacks like SMTP Downgrade and DNS Spoofing.

  • It solves multiple SMTP security problems, including expired TLS certificates and lack of support for secure protocols.

  • Transports your email over a secure connection to prevent data from being tampered with or viewed by cybercriminals.

  • MTA-STS makes encryption in transit mandatory in SMTP communication.

Deploy Hosted MTA-STS at your organization fast and easy with PowerDMARC, and enforce emails to be sent over a TLS encrypted connection to keep pervasive monitoring attacks at bay!

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