SSL certificate request fails on a specific extension

OS type and version: Debian 10
Webmin version: 1.973
Virtualmin version: 6.16

I’m trying to renew a SSL cert from Virtualmin for a .team subdomain, for example Renewal fails because:

Invalid host in redirect target “”

Weird, it seems it’s appending “.well-known” to the real domain, of course result is an invalid host. I was wondering if this was a Virtualmin problem, a config problem or something I should report to Let’s Encrypt … Also this a renewal but I do not recall having problems when first generating the original cert … Domains with a .team top level domain are quite unusual (it’s the first I see) so I was wondering if some code was disturbed by that ?


I suspect this indicates some redirect rule is chewing up the /.

Do you have an .htaccess file with redirects or any redirect rules in the virtual host config file?

I already tried with the htaccess disabled, no success. But I didn’t think about redirects created from Virtualmin and of course there was one with a missing trailing slash, my bad. Thank you !

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