There is a direct A record, but no AAAA (or CNAME).
Lack of CNAME is expected, as there is a MX/DKIM/SPF proper configuration.
$ nslookup -type=AAAA phabricator.wolfplex.be Server: 2001:470:20::2 Address: 2001:470:20::2#53 Non-authoritative answer: *** Can't find phabricator.wolfplex.be: No answer $ nslookup -type=CNAME phabricator.wolfplex.be Server: 2001:470:20::2 Address: 2001:470:20::2#53 Non-authoritative answer: *** Can't find phabricator.wolfplex.be: No answer
New record
phabricator.wolfplex.be. 86400 IN AAAA 2001:470:1f13:ce7:ca5:cade:fab:1e
Dump of the full records for (*.)phabricator.wolfplex.be
phabricator.wolfplex.be. 86400 IN A 212.129.32.223 phabricator.wolfplex.be. 86400 IN MX 10 mxa.mailgun.org. phabricator.wolfplex.be. 86400 IN MX 10 mxb.mailgun.org. phabricator.wolfplex.be. 86400 IN TXT "v=spf1 include:mailgun.org ~all" phabricator.wolfplex.be. 86400 IN SPF "v=spf1 include:mailgun.org ~all" mailo._domainkey.phabricator.wolfplex.be. 86400 IN TXT "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDjCvS4ePzgZkGmQT0Zhco0+sjA2Y0zyq1CEML652mmYeHZn9xaGMOpaY5OUhJ0vC7OmOGm9a3jANjXIVjT5LbNDITkLkpNovQywJsw3fn+Wo5f6bZeq6AlMzuqKUBBVXsJsOQ+1l31b1FpVZmGsIlT9wliQQT70FCUXnMi+6NtFQIDAQAB" phabricator.wolfplex.be. 86400 IN AAAA 2001:470:1f13:ce7:ca5:cade:fab:1e