Sophos has been informed by Let's Encrypt that a small subset (~2.6%) of certificates will be revoked on 4 March 2020. Since the UTM does not require an email when registering a new certificate, Let's Encrypt is not able to notify our users directly.
Applies to the following Sophos products and versions Sophos UTM
In the WebAmin, renew any affected Let's Encrypt certificates by clicking on the Renew button on the Certificate Management page.
Sign up to the Sophos Support SMS Notification Service to get the latest product release information and critical issues.
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