We are always looking for ways to improve our security and that of our customers. As such, on August 31, 2021, Splunk Observability Cloud is disabling support for outbound connections using HTTP and ones that use deprecated versions of HTTPS TLS which include SSL (1.0, 2.0, and 3.0) and TLS 1.0 and 1.1. This change affects the Splunk Observability Cloud integrations and notifications, webhooks, email (SMTP) servers, and SSO/SAML connections.

This change affects all Splunk Observability products including:
- Splunk Infrastructure Monitoring (IM)
- Splunk Application Performance Monitoring (APM)
- Splunk Real User Monitoring (RUM)
- Splunk Log Observer

Customers that have configured HTTPS for these connections and are using TLS 1.2+ are not affected. After August 31, 2021, connections that are using HTTP or HTTPS with earlier than TLS 1.2 will stop functioning.

If you believe you are affected by this change, please ensure your systems and configuration are updated before this change occurs. If you have any questions please feel free to contact your Splunk representative, open a support case using the in-app support portal, or send an email to observability-support@splunk.com.
Posted on Jul 29, 12:21 PDT