I use Let's Encrypt on Ubuntu 17.10 server with Apache HTTP server. In crontab I have:

15 3 * * * /usr/bin/certbot renew

If I check expire date with:

sudo certbot certificate

I get report for my two certificates with expire date 2018-03-18. So far, so good.

But - I got an email from expiry@letsencrypt.org with notification that certificate for the same domain(s) will expire on 2018-01-16.



Perhaps these are older certificates that you generated but have not revoked ? If the installed certificates have the correct date then you have nothing to worry about.

  • Maybe. I will wait some days and see if there will be something wrong. It isn't production server, so this isn't dangerous :-) – JanezKranjski Jan 8 '18 at 9:50

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