Your MX records are still at your old host.
root@hanlon [~]# dig mx hackidc.com
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> mx hackidc.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23316
;; flags: qr rd ra; QUERY: 1, ANSWER: 3...