Nicknym is not responding when requesting another nicknym or key inside own domain

curl -k -X GET -d address=someone@wazokazi.is https://unstable.pixelated-project.org:6425
--> returns {"error":"failed to connect: Connection timed out - connect(2) for \"nicknym.wazokazi.is\" port 64250"}~
--> log:
D, [2016-11-21T14:44:57.805685 #26851] DEBUG -- :   {"address"=>["someone@wazokazi.is"]}
I, [2016-11-21T14:46:34.907728 #26851]  INFO -- : GET /

curl -k -X GET -d address=someone@thoughtworks.com https://unstable.pixelated-project.org:6425
--> returns the key
--> log:
D, [2016-11-21T14:46:34.908053 #26851] DEBUG -- :   {"address"=>["someone@thoughtworks.com"]}
I, [2016-11-21T14:46:36.698322 #26851]  INFO -- :  -> 200

(from redmine: created on 2016-11-21, closed on 2016-12-06, relates #8661, relates #8662 (closed), relates #8663 (closed), relates #8672, relates #8673, relates #8674 (closed), relates #8675)