PTR Records

I ran some Reverse DNS Lookups for our domain and have a problem that I'm
not sure how to solve. We have a filter that receives all incoming email (so
the MX record is set to the filter's IP), but each Exchange 2000 server
sends its own outgoing email. We do have PTR records for all of the Exchange
servers, but they are not listed first, so the domains that check PTR
records are refusing email from us because our PTR records don't point back
to the original IP. If one of you kind souls has a few minutes to help with
this, please send me an email and I will provide the IPs that have the
problem! Thanks!


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Relevant Pages

  • Re: Reverse DNS for multiple mail domains on same server
    ... On the subject of receiving mail servers performing reverse dns checking: ... implemented in Exchange 2003? ... Won't it stop some legitimate mail to get to your server? ... >> I am trying to understand how to properly setup the PTR records for ...
    (microsoft.public.exchange2000.admin)
  • Re: Reverse DNS for multiple mail domains on same server
    ... On the subject of receiving mail servers performing reverse dns checking: ... implemented in Exchange 2003? ... Won't it stop some legitimate mail to get to your server? ... >> I am trying to understand how to properly setup the PTR records for ...
    (microsoft.public.win2000.dns)
  • Re: DNS Issue with 2003 Server
    ... I get a messaga indicating Exchange server is not available. ... secure connection to your ISP's DNS to register PTR records in their DNS. ...
    (microsoft.public.windows.server.dns)
  • PTR Records
    ... We have a filter that receives all incoming email (so ... the MX record is set to the filter's IP), but each Exchange 2000 server ... We do have PTR records for all of the Exchange ...
    (microsoft.public.exchange2000.admin)
  • Re: BT and the mail relay and sbs 2003
    ... Run CEICW specify the hosting smtp server as the the outgoing server - you can't at this point enter the outgoing authentication details. ... If you have a static IP address ditch all this asap and change to dns to route your email. ... At least some of BT's PTR records are generic, fixed IP address or not, and as such are blacklisted by SORBS and others. ... BT tends not to understand PTR records, and is not especially keen to alter them, even for 'business' customers. ...
    (microsoft.public.windows.server.sbs)