kedua IP itu kan dalam 1 server. Diganti-ganti ya aman saja, kecuali anda ganti ke IP yang khusus di-assign ke domain tertentu. Tapi juga tidak berguna kalau IP yang lain itu juga tidak ada ptr/rdns.
Baik akan saya coba.
PTR/RDNS itu maksudnya apakah "Reverse MX A records (PTR)" ya mas ?
Barusan saya check di Intodns dan Dnsinspect, memang error nya di bagian itu.
Intodns:
http://www.intodns.com/larisia.com
ERROR: No reverse DNS (PTR) entries. The problem MX records are:
94.73.254.192.in-addr.arpa -> no reverse (PTR) detected
You should contact your ISP and ask him to add a PTR record for your ips
Dnsinpect:
http://www.dnsinspect.com/larisia.com/1429000855
Reverse Entries for MX records
WARNING: Found mail servers with inconsistent reverse DNS entries. You should fix them if you are using those servers to send email.
Server IP PTR (Reverse) IPs
mail.larisia.com. 192.254.73.94 ? ?
All mail servers should have a reverse DNS (PTR) entry for each IP address (RFC 1912). Missing reverse DNS entries will make many mail servers to reject your e-mails or mark them as SPAM.
All IP's reverse DNS entries should resolve back to IP address (IP → PTR → IP). Many mail servers are configured to reject e-mails from IPs with inconsistent reverse DNS configuration.
