Hi Zauny,
Try postqueue -f instead of postqueue -s
Also, it's best if you make a note to save them but remove these lines from your /etc/resolv.conf:
APPSERVER 10.19.1.71
dns-server 10.19.0.11
ns1.btl.net 200.32.248.1
ns2.btl.net 200.32.218.132
It doesn't appear that they are causing a problem still existing there, but the only lines that should be in that file start with nameserver, search, domain, and possibly some options lines.