Server could not connect to the client to verify the domain - Zimbra Talk

Server
1

We are trying to install a trial of Zimbra Talk but apparently LE’s server cannot resolve some of the A records we registered, even though we tried dig-ging the domains it on three different locations.
More info: https://wiki.zimbra.com/wiki/How_to_Install_Zimbra_Talk

Full domain name: ursolutions.ph, and 7 sub domains: xmpp, conference, external, conference.external, auth, jitsi-videobridge, and focus

Command line ran:./certbot-auto certonly

Output of the command: http://pastebin.com/HnJ5vF5i

OS and webserver: Ubuntu 14.04LTS, certs are to be used for Zimbra Talk

Hosting provider: Linode

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for me it’s also failing at your authoritative nameserver ( strygwyr.ursolutions.ph - 106.185.45.83 ) which doesn’t respond, hence does not provide the A records.

Also your SOA records point to ursolutions.ph as your primary nameserver.

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