I can't resolve your domains. But Google can?
dig @8.8.8.8 eu.eclipsemc.com
; <<>> DiG 9.7.1-P2 <<>> @8.8.8.8 eu.eclipsemc.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7149
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;eu.eclipsemc.com. IN A
;; ANSWER SECTION:
eu.eclipsemc.com. 17638 IN A 46.137.73.24
;; Query time: 29 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Jul 9 23:17:42 2011
;; MSG SIZE rcvd: 50
$ dig @8.8.8.8 eu.eclipsemc.com ns
; <<>> DiG 9.7.1-P2 <<>> @8.8.8.8 eu.eclipsemc.com ns
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 957
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;eu.eclipsemc.com. IN NS
;; AUTHORITY SECTION:
eclipsemc.com. 1682 IN SOA ns4.communityhosting.net. bovine.cowmail.org. 2011070803 900 3600 86400 10800
;; Query time: 34 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Jul 9 23:17:44 2011
;; MSG SIZE rcvd: 112
Your authorative nameservers are not responding:
$ dig @ns4.communityhosting.net eu.eclipsemc.com ns
; <<>> DiG 9.7.1-P2 <<>> @ns4.communityhosting.net eu.eclipsemc.com ns
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
$ dig @bovine.cowmail.org eu.eclipsemc.com
dig: couldn't get address for 'bovine.cowmail.org': not found
I doublechecked that on a different machine in another country with different network.
[edit:] If you have the same problem you can reach the US server at 208.110.73.247. The EU server also doesn't respond at it's IP.