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Reverse DNS For E-mail And Dedicated IP's Question

Discussion in 'Bind / DNS / Nameserver Issues' started by dkz, Jan 13, 2006.

  1. dkz

    dkz Member

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    Hello,

    I wanted to know if I assign a domain name a dedicated IP if that IP needs a reverse DNS listing as well so it will not be block from ISP's such as AOL or will the e-mail for that domain still be sent via the primary IP address which is what is listed for the mail server?

    Thank you for the help.
     
  2. Tagor

    Tagor Member

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    The PTR record should resolve to the server. If it doesn't, other providers may block your e-mail messages.
     
  3. chirpy

    chirpy Super Moderator

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    The latter. All email is, by default, sent out on the main servers IP address and so you only really need an rDNS PTR record for the main IP.
     
  4. dkz

    dkz Member

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    Thanks for verifying that!
     
  5. ddmobley

    ddmobley New Member

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    But that won't solve the problems dnsreport.com has in not finding a reverse PTR for IP address of the domain name.

    I have a PTR for the primary IP address of my server, which there is no problem with. But the virtual sites are on another IP address. When dnsreport.com looks up any of the virtual sites on that secondary IP address it reports the no reverse PTR error.

    It also creates the mail server hostname greeting problem as well. How does others get around this, all of the shared sites hosted on the same primary IP address?
     
  6. chirpy

    chirpy Super Moderator

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    That's a failing of dnsreport.com, not your server configuration.
     

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