Action is required to prevent your Let’s Encrypt certificate renewals from breaking. Your Let’s Encrypt client used ACME TLS-SNI-01 domain validation to issue a certificate in the past 60 days. TLS-SNI-01 validation is reaching end-of-life and will stop working on February 13th, 2019. You need to…

ACME TLS-SNI-01 on Synology NAS

Sacsayhuaman January 28, 2019, 1:38pm 11

I am going to link my answer in this thread as well: Synology TLS-SNI-01 End of Life Email?

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