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Thread: [SOLVED] PRT, RDNS, Deferred, And more...

  1. #11
    physikal is offline Loyal Member
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    Which log would I check for that?

  2. #12
    physikal is offline Loyal Member
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    Still having this issue. Any ideas which log I would check for this? (the domain name is mobiusllc.net)

  3. #13
    veronica is offline Outstanding Member
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    [xxx.xxx.xxx.xxx] refused to talk to me: 554-5.7.1 - connection refused. ip name lookup failed for xxx.xxx.xxx.50

    This kind of error generally appears when the remote server is doing some kind of checks say RBL etc.

    There seems to be issue in your name lookup corresponding to your ip address used for sending mail.

  4. #14
    physikal is offline Loyal Member
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    Veronica:

    That is exactly what I was thinking. Because the .50 address is my firewall's address, it is not my mail servers address. I have no clue how its picking that up and why its coming back. Other than the fact that it is the gateway possibly? But how would I fix that.

  5. #15
    veronica is offline Outstanding Member
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    Are you natting to some IP which is not registered. Generally external services like RBL do a reverse lookup for your IP address to match with your name.

  6. #16
    physikal is offline Loyal Member
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    Sorry for the stupid question. But how would I know if my IP is registered or not?

    I do know that when I do an mxlookup and diagnostic at mxtoolbox.com everything is a go.

    And yes I am doing some NATing. The NATing is handled by the Firewall which is .50, its using a "virtual" interface if you will at .97 which directs it to the mail server.

  7. #17
    physikal is offline Loyal Member
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    Phoenix, any ideas?

  8. #18
    physikal is offline Loyal Member
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    Fixed. Firewall Source NAT editing.

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