Home Forums Lansupport-Troubleshooting POP Error when connecting to Exchange 2007

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    admin
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    POP Error when connecting to Exchange 2007

    Exchange 2007: POP3 ERR Command is not valid in this state

    Summary: POP applications report ERR “Command is not valid in this state” after supplying credentials. To verify you try telnetting to POP port 110 of your exchange server:

    Telnet Exchangeserver 110
    User Myaccount
    Pass Mypass
    ERR Command is not valid in this state
    Resolution: Open your Exchange Shell and enter:

    Set-PopSettings -LoginType PlainTextLogin

    Restart your POP3 service

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