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Setting up Exchange 2010 with Mail Security using my registered domain MX record

turboizzy
I have been trying to find a solution for this for the last two days and has been driving me crazy.

So I have an astaro firewall setup and running smoothly, the external interface is  a DSL connection and this updates my domain hostname ip address automatically via a DynDns Service. Here's my DynDns host info:

Mail Exchangers:  mniexchange01.mnisystems.co.uk


mnisystems.co.uk  A-record
mniexchange01.mnisystems.co.uk  A-record
www.mnisystems.co.uk

I have setup Microsoft Exchange 2010 on Server 2008 R2 and it is working properly internally as internal clients are able to send and receive emails without any problems. I cannot however send or receive emails to external addresses. Any help would be greatly appreciated.


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  • 0
    No, you have just created an open SMTP relay, and you're probebly already relaying spam.  'Host-based relay' should contain ONLY the Host definition for your mail server.

    Cheers - Bob
  • 0 in reply to BAlfson
    It only seems to work if I have it setup like this otherwise no messages come through to the astaro
  • 0 in reply to turboizzy
    It only seems to work if I have it setup like this otherwise no messages come through to the astaro


    you have to decide what traffic will go on port 25
    yourdomain.com or any-spam.com

    in exchange play a bit with "smtp connector''
    follow the logic: exchange, you will contact gmail from Astaro Ip.
    and you atsaro, you will catch all port 25 trafic and allow only the exchange to go out [:)]
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  • 0 in reply to turboizzy
    It only seems to work if I have it setup like this otherwise no messages come through to the astaro


    you have to decide what traffic will go on port 25
    yourdomain.com or any-spam.com

    in exchange play a bit with "smtp connector''
    follow the logic: exchange, you will contact gmail from Astaro Ip.
    and you atsaro, you will catch all port 25 trafic and allow only the exchange to go out [:)]
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