when I ping mail.cyberwatchers.com I get the external. when I ping mail I get the internal I use a DNS server as this is a domain. I have the setup using it and the resolve.conf is setup with it.
here are the tcpdump files699854], length 0
16:58:30.715116 IP mail.cyberwatchers.com.https > gbook.cyberwatchers.local.49278: Flags [P.], seq 963:1048, ack 736, win 130, options [nop,nop,TS val 14714869 ecr 273244396], length 85
16:58:30.715165 IP mail.cyberwatchers.com.https > gbook.cyberwatchers.local.49278: Flags [F.], seq 1048, ack 736, win 130, options [nop,nop,TS val 14714869 ecr 273244396], length 0
16:58:30.735773 IP gbook.cyberwatchers.local.49278 > mail.cyberwatchers.com.https: Flags [.], ack 1048, win 4093, options [nop,nop,TS val 273259421 ecr 14714869], length 0
16:58:30.736141 IP gbook.cyberwatchers.local.49278 > mail.cyberwatchers.com.https: Flags [.], ack 1049, win 4093, options [nop,nop,TS val 273259421 ecr 14714869], length 0
16:58:35.025536 IP gbook.cyberwatchers.local.49278 > mail.cyberwatchers.com.https: Flags [F.], seq 736, ack 1049, win 4096, options [nop,nop,TS val 273263688 ecr 14714869], length 0
16:58:35.025563 IP mail.cyberwatchers.com.https > gbook.cyberwatchers.local.49278: Flags [.], ack 737, win 130, options [nop,nop,TS val 14719180 ecr 273263688], length 0