Hey dear community😁,

I just did try to install Mailcow. 😀
Unfortunately, an error occurred that I couldn’t solve on my own. That is why I am addressing you.
When issuing my Let’s Encrypt certificate, I am always surprised by this error:
Cannot validate any hostnames, skipping Let's Encrypt for 1 hour.

I looked on Google, but unfortunately I couldn’t find anything

Here is my whole log:

acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Waiting for Nginx... OK acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Waiting for domain table... OK acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Initializing, please wait... acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Using existing domain rsa key /var/lib/acme/acme/key.pem acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Using existing Lets Encrypt account key /var/lib/acme/acme/account.pem acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Detecting IP addresses... OK acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Found AAAA record for de01.dominikdev.de: 2a0c:75c0:3:2::c6 - skipping A record check acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Confirmed AAAA record with IP 2a0c:75c0:3:2::c6, but HTTP validation failed acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Cannot validate any hostnames, skipping Let's Encrypt for 1 hour. acme-mailcow_1 | Wed Apr 22 21:51:36 UTC 2020 - Use SKIP_LETS_ENCRYPT=y in mailcow.conf to skip it permanently. acme-mailcow_1 | OK root@de01 /opt/mailcow-dockerized#>``

I thank you all in advance <3
Kind regards, Dominik!