Lorenzo Milesi

The MX record has nothing to do with certificate deployment. Your host `autodiscover.mydomaint.co.uk` doesn't exist (no A record)

Check in your nginx access log if you have rows with `acme-challenge`

Have a look at #140

Thank you for sharing this, I'll review asap. One question at first sight: are all the OS checks necessary? Isn't it enough to check if Zimbra itself is installed, is...

New OS packages renew certs automatically, and won't call the `post-hook` script. I need to find something compatible with that. In the meantime I suggested to disable OS certs renewal...

Good point, indeed it can be useful

Hi. This is an error from certbot itself, not from the script. Look for errors at `/var/log/letsencrypt`, but the first guess would be to update certbot binary from official LE...

As you noted I'd use this just to test nginx config, which is as of today the biggest cause of trouble. I can't recall many times when real deployment fails....

I'm fine with that, indeed I'm not loving using snap either. Do you have time to take care of this, because I don't 😓

Acme.sh has a plugin for [Zimbra install](https://github.com/JimDunphy/acme.sh/blob/master/deploy/zimbra.sh). Also there's a [wiki page](https://wiki.zimbra.com/wiki/JDunphy-Letsencrypt) on how to delpoy LE cert in Zimbra using acme.sh.