This is an example, not everyones file will look exactly the same. The itmes listed in red must be as written, the items in green are information CTS will provide.

$TTL 3600
@ IN SOA ns1.ctstelecom.com. baker.ctstelecom.com. (
2005121201 ; Serial - yymmddhh
10800 ; Refresh after 3 hours
3600 ; Retry after 1 hour
604800 ; Expire after 1 week
86400 ) ; Minimum TTL of 1 day

;
; Name Servers
;
IN NS ns1.ctstelecom.com.
IN NS ns2.ctstelecom.com.

IN MX 100 quickwire.net.mail5.psmtp.com.
IN MX 200 quickwire.net.mail6.psmtp.com.
IN MX 300 quickwire.net.mail7.psmtp.com.
IN MX 400 quickwire.net.mail8.psmtp.com.

;
; Addresses of canonical names
;
quickwire.net. IN A 56.XXX.XXX.xxx
www IN A 56.XXX.XXX.xxx

webmail IN A 64.20.207.X
smtp IN A 64.20.207.X
mail IN A 64.20.207.X