---
title: Why Automating TLS Certificate Renewals Is More Important Than Ever
description: Why automating TLS and SSL certificate renewals is more important than ever. TLS certificates are going to be valid for shorter periods of time.
image: https://blog.mdaemon.com/hubfs/SecurityGateway_Keep-email-private.png
---

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# MDaemon Technologies Blog

## [Why Automating TLS Certificate Renewals Is More Important Than Ever](https://blog.mdaemon.com/why-automating-tls-certificate-renewals-is-more-important-than-ever)

 By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro)

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TLS (Transport Layer Security) is a cryptographic protocol that allows secure communication over a network. It uses a certificate issued by a trusted CA (certificate authority) to encrypt connections between clients and servers. These certificates must be renewed periodically to ensure continued data privacy.

- Right now, TLS certificates can be valid for up to 398 days.
- Starting March 15, 2026, that limit will drop to 200 days.
- By March 15, 2027, it will decrease again to just 100 days.
- And by March 15, 2029, the maximum validity will be only 47 days.

## Why is this happening?

These increasingly shorter lifespans are being adopted because the information contained in TLS certificates becomes less reliable over time. To maintain trust and data integrity, certificates must be re-validated more frequently. This shift makes manual renewal processes inefficient and impractical—automation becomes essential.

Shorter certificate lifetimes also help minimize the risk of continuing to use revoked or compromised certificates.

### SecurityGateway makes TLS certificate updates easy

Fortunately, SecurityGateway now makes automation of SSL/TLS certificate renewal simpler than ever.

Under the **Setup/Users | System | Encryption** menu in SecurityGateway, you’ll find a setting that, when enabled, will automatically detect and activate newer certificates as soon as they’re available—no manual steps required. This means administrators have complete flexibility in how they automate renewals, while SecurityGateway ensures a seamless transition to updated certificates.

![SSL and TLS settings in SecurityGateway for Email by MDaemon Technologies](https://blog.mdaemon.com/hs-fs/hubfs/SecurityGateway_TLS_Settings.png?width=1429&height=909&name=SecurityGateway_TLS_Settings.png)

### What does this mean for administrators?

This new, automated certificate activation capability makes SSL/TLS certificate updates much easier. There’s no longer a need to rely on specific tools like Let’s Encrypt. You can use any certificate management solution that installs certificates to the correct location in the Windows certificate store.

 Questions? Let us know in the comments section below!

 Tags: [Email Security](https://blog.mdaemon.com/topic/email-security), [Encrypt](https://blog.mdaemon.com/topic/encrypt), [Email Encryption](https://blog.mdaemon.com/topic/email-encryption), [Cybersecurity](https://blog.mdaemon.com/topic/cybersecurity), [ssl](https://blog.mdaemon.com/topic/ssl), [SecurityGateway](https://blog.mdaemon.com/topic/securitygateway)

![Brad Wyro](https://blog.mdaemon.com/hs-fs/hubfs/Brad-2023v2.jpg?width=100&height=100&name=Brad-2023v2.jpg)

#### Written by [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro)

Brad has worked in technical and marketing roles at MDaemon Technologies, where he contributes as Content Marketing Manager. Brad balances technical and creative information to develop easy to understand videos and content to educate prospects and customers.

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#### About MDaemon Technologies

MDaemon Technologies is a pioneer in developing email and email security software helping to protect customers from evolving cyber-security threats. Its products and services are trusted by thousands of organizations in over 140 countries. For more than two decades, the company’s products have been developed with the ongoing input of IT professionals who demand reliable, affordable software that requires minimal effort to manage.

The software can be deployed in virtual, hosted cloud, on-premises, or hybrid network environments. The company sells its software and services directly and through a network of global channel partners.

For more information, visit [www.mdaemon.com](https://www.altn.com/).

Copyright © 1996-2026 MDaemon Technologies.  View [privacy policy](https://mdaemon.com/policies/privacy-policy).

 

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