>I'm hoping that somebody can help me confirm that my ISP's have setup >Reverse DNS for our Mail >Server correctly.
it is >roycemedical.com I was >able to determine that we didn't have a Reverse DNS entry yes, you do, via RFC2317 classless reverse delegation: # dig roycemedical.com mx ; <<>> DiG 8.3 <<>> roycemedical.com mx ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3 ;; QUERY SECTION: ;; roycemedical.com, type = MX, class = IN ;; ANSWER SECTION: roycemedical.com. 1W IN MX 10 mail.roycemedical.com. ;; AUTHORITY SECTION: roycemedical.com. 1W IN NS ns1.otn.com. roycemedical.com. 1W IN NS ns2.otn.com. ;; ADDITIONAL SECTION: mail.roycemedical.com. 1W IN A 12.35.200.18 ------------------------- # dig -x 12.35.200.18 ; <<>> DiG 8.3 <<>> -x ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4 ;; QUERY SECTION: ;; 18.200.35.12.in-addr.arpa, type = ANY, class = IN ;; ANSWER SECTION: 18.200.35.12.in-addr.arpa. 23h3m20s IN CNAME 18.16/28.200.35.12.in-addr.arpa. ------------------------------ # dig 18.16/28.200.35.12.in-addr.arpa. ptr ; <<>> DiG 8.3 <<>> 18.16/28.200.35.12.in-addr.arpa. ptr ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1 ;; QUERY SECTION: ;; 18.16/28.200.35.12.in-addr.arpa, type = PTR, class = IN ;; ANSWER SECTION: 18.16/28.200.35.12.in-addr.arpa. 1D IN PTR mail.roycemedical.com. Len http://MenAndMice.com/DNS-training http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
