mail.alternatememories.com has an A (IPv4) record (71.19.148.126) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
Get "https://www.mail.alternatememories.com/.well-known/acme-challenge/letsdebug-test": No AAAA or A records were found for www.mail.alternatememories.com
Trace:
@0ms: Making a request to http://mail.alternatememories.com/.well-known/acme-challenge/letsdebug-test (using initial IP 71.19.148.126)
@0ms: Dialing 71.19.148.126
@133ms: Server response: HTTP 301 Moved Permanently
@133ms: Received redirect to https://mail.alternatememories.com/.well-known/acme-challenge/letsdebug-test
@133ms: Dialing 71.19.148.126
@331ms: Server response: HTTP 301 Moved Permanently
@331ms: Received redirect to https://www.mail.alternatememories.com/.well-known/acme-challenge/letsdebug-test
@1024ms: Experienced error: No AAAA or A records were found for www.mail.alternatememories.com
A test authorization for mail.alternatememories.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching https://www.mail.alternatememories.com/.well-known/acme-challenge/dJBY2SwIkPG0uL8wat8h5sJtZG4wpXziIvfqAhPlkko: DNS problem: NXDOMAIN looking up A for www.mail.alternatememories.com - check that a DNS record exists for this domain
The current status as reported by the Let's Encrypt status page is Service Disruption as at 2021-04-14 06:29:07.888 +0000 UTC. Depending on the reported problem, this may affect certificate issuance. For more information, please visit the status page.
https://letsencrypt.status.io/