Let's Encrypt certificate expiration notice url is insecure

Today I got an expiration notification and I tried to unsubscribe and got a insecure connection warning.
The connection to delivery.letsencrypt.org is not secure
Can not believe it is not even secure.

3 Likes

Thank you for letting us know. We are looking now.

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Ironically, our current ESP (Mailchimp Transactional) does not support HTTPS on unsubscribe links.

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Is there any fix for it, all the Chromium browsers (Vivaldi) show insecure error on http links now. I am not sure about Firefox on http links.

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No, unfortunately, not that I'm aware of. We've given Mailchimp our feedback. The workaround will (unfortunately) be to click through the browser error, or to use an ACME client to remove your email address from your registration (account).

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