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Exchange 2007 Authenticated relaying

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  • Exchange 2007 Authenticated relaying

    Good Morning,

    i am hoping somebody knows what logging i need to turn on in Exchange 2007 (edge transport server) to see if anyone is trying to relay off my SMTP server using an authenticated account? We have had some issues being blacklisted by hotmail and yahoo and our server is definitely not an open relay (or at least it passes all relay tests run against it). The smtp gateway was previously Exchange 2003 with Trend Scan mail running but since the last attack i have replaced with a Exchange 2007 Edge running forefront 2010 for exchange.
    i am assuming i use the Set-EventLogLevel MSExchangeTransport\logging command? any help would be appreciated,

    cheers,
    Hazey
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