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Same sender - 2 COMPLETELY different IPs RRS feed

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    This is most likely not an exchange issue but i thought i would start here.

    I am recieving 2 emails from the same senders email address. ex... bob@hisaddress.com

    One of the emails comes from bobs IP address and the other message shows origination in the UK and gets blocked by my SMTP's countries-nerd-dk blacklist. Obviously adding there companies name to the whitelist filter wont work to pass the filter as the IP is what is getting blocked and adding the IP could work for a while but if that changes then the block would happen again.

    My question is, why is one of the emails originating from thier US server and another originating from the UK?

    thanks in advance,

    James

     


    Friday, August 5, 2011 3:02 PM

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    Hi,

    Please try to check the message header,you may post here.

    Xiu

    Monday, August 8, 2011 8:58 AM
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    Any update?
    Thursday, August 11, 2011 3:31 AM
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    Can you share message header
    SAH
    Monday, August 22, 2011 2:32 PM
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    Q> My question is, why is one of the emails originating from thier US server and another originating from the UK?

    A> Most likely that’s how the Sender wants it to be.

    The real problem here is that you are using countries-nerd-dk as a DNSBL. However this is not a spammer list as explained here:

    http://countries.nerd.dk/

    Exchange Message Recalling Works! - http://www.windeveloper.com/recall/
    Monday, August 22, 2011 4:38 PM