The Let’s Encrypt project has announced that they will sunset expiration warning emails on June 4, 2025.

They cited several good reasons for the change:

• It costs then tens of thousands of dollars a year.  Sending large quantities of email these days means using a third-party service or building similar infrastructure to handle all the anti-spam defenses major email providers have in place.
• It adds complexity to their infrastructure, to track and send those emails.
• They have to maintain records of millions of email addresses, which not only a cost but also out of line with their privacy-focused organization.

The good news is that these emails are largely unnecessary.  If you use certbot or similar, your certs are automatically renewed.  I only get emails from Let’s Encrypt when I’ve turned off a site and the renewal is no longer automated.  In other words, 100% of the emails I get about this are unnecessary.

But If You Want to Monitor Your Certs

There are many monitoring products that offer monitoring of SSL expirations as part of a larger suite of monitoring options.  Here’s a couple to look at if you don’t already have a solution:

• Hetrix Tools has a free forever tier
• Uptime Kuma is something you can self-host or throw on the docker host of your choice

Or you can go truly Low-End and write your own script.  It’s trivially simple.  I posted a quick 3-liner on LowEndTalk, which you could adapt.

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raindog308

Dread Lord of LowEnd Content at LowEndBox

I'm raindog308, techno polymath and long-time LowEndTalk community Administrator. My technical interests include all things Unix, perl, python, golang, shell scripting, vintage operating systems such as MVS, and relational database systems such as Oracle, PostgreSQL, and MySQL.

I also enjoy using LEBs! I have an empire of little guys for VPNs, larger guys for apps, and big guys for databases and storage. When I'm not in front a screen I'm into German Shepherd dogs, quality knives, target shooting, theology, tabletop roleplaying games, and forest hiking.

I enjoy writing technical articles here on LowEndBox to help people get more out of their systems. You can find me on LowEndTalk @raindog308

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