SMTP; 554 Refused. Your IP address is listed in the RBL at dyna.spamrats.com
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;; ANSWER SECTION:
22.44.55.204.in-addr.arpa. 76718 IN PTR 204.55.44.22.static.vsnl.net.in.
That means that your ip resolves to 204.55.44.22.static.vsnl.net.in. But only the name server at 200.51.00.2 can resolve it.
From my side, I cannot resolve that ip
You ip address must be resolvable from the internet if you intend to run a mail server. Now only the name server at 200.51.00.2 can resolve it and that name server is not reachable from outside
Code:
dig -x 204.55.44.22 @200.51.00.2
; <<>> DiG 9.7.0 <<>> -x 204.55.44.22 @200.51.00.2
;; global options: +cmd
;; connection timed out; no servers could be reached
If 200.51.00.2 (is it your ISP dns server?) is authoritative for your subnet, you should describe them this situation.
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