DNS CNAME Record

I am trying to setup a CNAME but it will not resolve. Can anyone tell me if the CNANE in the zone file below is setup correct (last line).

$ttl 7200s
@ IN SOA ns1.triadhosting03.com. root.ns1.triadhosting03.com. (
1397300725
10800
3600
604800
38400 )
@ IN NS ns2.triadhosting03.com.
safetworksinc.com. IN A 173.227.252.179
ftp.safetworksinc.com. IN A 173.227.252.179
smtp.safetworksinc.com. IN A 173.227.252.179
webmail.safetworksinc.com. IN A 173.227.252.179
spamfilter.safetworksinc.com. IN A 64.128.223.14
mail.safetworksinc.com. IN A 173.227.252.179
safetworksinc.com. IN MX 5 mail.safetworksinc.com.
www.safetworksinc.com. IN CNAME safetworksinc.com.

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