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Current information on Service Availability
Upcoming Deprecation of TLS 1.2 for Messaging Services (March 2026)
Scheduled for Nov 19, 2025, 16:00 - 17:00 CET
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Update
We previously announced a March 1, 2026 deadline to discontinue support for Transport Layer Security (TLS) 1.2 across all messaging-related services. We’d like to clarify that this deadline no longer applies.
While there is no longer a fixed timeline for the transition to TLS 1.3, we strongly encourage you to update your integrations to support TLS 1.3 as soon as possible. This applies to all connections to our messaging services and helps ensure secure and reliable communication.
Please note that, in some situations, traffic sent using TLS 1.2 or non-encrypted connections may be canceled to meet security or compliance requirements.
Why TLS 1.3?
TLS 1.3 is a major step forward in both security and performance. It removes outdated cryptographic functions and simplifies the connection process, providing stronger protection for your data and more efficient communication. Moving to TLS 1.3 helps keep your services secure and running smoothly.
What you need to do
We recommend reviewing your systems and updating any clients that still use TLS 1.2. Although there is no longer a set deadline, testing and ensuring full compatibility with TLS 1.3 as soon as possible can help prevent potential disruptions, particularly when connecting to destinations that require TLS 1.3.
For more details about this update and guidance on how to prepare, please visit our release notes here:
https://releasenotes.cm.com/release-notes/connectivity-platform/messaging-platform
While there is no longer a fixed timeline for the transition to TLS 1.3, we strongly encourage you to update your integrations to support TLS 1.3 as soon as possible. This applies to all connections to our messaging services and helps ensure secure and reliable communication.
Please note that, in some situations, traffic sent using TLS 1.2 or non-encrypted connections may be canceled to meet security or compliance requirements.
Why TLS 1.3?
TLS 1.3 is a major step forward in both security and performance. It removes outdated cryptographic functions and simplifies the connection process, providing stronger protection for your data and more efficient communication. Moving to TLS 1.3 helps keep your services secure and running smoothly.
What you need to do
We recommend reviewing your systems and updating any clients that still use TLS 1.2. Although there is no longer a set deadline, testing and ensuring full compatibility with TLS 1.3 as soon as possible can help prevent potential disruptions, particularly when connecting to destinations that require TLS 1.3.
For more details about this update and guidance on how to prepare, please visit our release notes here:
https://releasenotes.cm.com/release-notes/connectivity-platform/messaging-platform
Scheduled
At CM.com, we are committed to providing secure and reliable services while adhering to the highest industry standards. As part of this commitment, we will be discontinuing support for Transport Layer Security (TLS) 1.2 on March 1, 2026, for all messaging-related services.
This change will impact all connections to our Business Messaging Gateway API and SMPP servers. After this date, any connection attempts made using TLS 1.2 will no longer be supported. To ensure uninterrupted service, we kindly request that you update your integrations to support TLS 1.3 before the deadline.
Why TLS 1.3?
TLS 1.3 represents a significant advancement in security and performance. By removing outdated cryptographic functions and streamlining the connection handshake process, TLS 1.3 offers enhanced protection for your data and improved efficiency. This upgrade is essential to safeguard your communications and maintain the stability of your services.
What You Need to Do
We strongly encourage all customers to review their systems and update any clients still using TLS 1.2. Please ensure your integrations are tested and fully compatible with TLS 1.3 well ahead of March 1, 2026, to avoid any disruptions.
For more details about this update and guidance on how to prepare, please visit our release notes here:
https://releasenotes.cm.com/release-notes/connectivity-platform/messaging-platform
This change will impact all connections to our Business Messaging Gateway API and SMPP servers. After this date, any connection attempts made using TLS 1.2 will no longer be supported. To ensure uninterrupted service, we kindly request that you update your integrations to support TLS 1.3 before the deadline.
Why TLS 1.3?
TLS 1.3 represents a significant advancement in security and performance. By removing outdated cryptographic functions and streamlining the connection handshake process, TLS 1.3 offers enhanced protection for your data and improved efficiency. This upgrade is essential to safeguard your communications and maintain the stability of your services.
What You Need to Do
We strongly encourage all customers to review their systems and update any clients still using TLS 1.2. Please ensure your integrations are tested and fully compatible with TLS 1.3 well ahead of March 1, 2026, to avoid any disruptions.
For more details about this update and guidance on how to prepare, please visit our release notes here:
https://releasenotes.cm.com/release-notes/connectivity-platform/messaging-platform
This scheduled maintenance affects: Messaging (Business Messaging API, Smpp, WhatsApp Business, RCS Business Messaging).