Outlook 2007 over POP3 - duplicate emails on one ISP connection

Discussion in 'Outlook General' started by NY, Sep 21, 2013.

  1. NY

    NY Guest

    My wife's laptop (Windows 7, Outlook 2007 receiving email over POP3)
    normally received email fine: it receives one and only one copy of each
    message. However when she is connected over one particular ISP's connection
    (in a holiday cottage) Outlook downloads every email on the POP server, even
    though she has already received the majority of them.

    She has got "leave a copy of emails on server for n days" enabled so reading
    emails on her laptop doesn't delete them form the server and prevent them
    being downloaded on her main desktop PC.

    I tried turning on POP3 logging (http://support.microsoft.com/kb/300479) but
    this seemed to make Outlook behave OK which is frustrating because I was
    hoping to see evidence of why Outlook was getting multiple copies and
    compare it with a log on my laptop which uses Windows Live Mail and does not
    have any problems with duplicates.

    Frustrating that turning on logging to investigate the problem seems to cure
    the problem! We're going to leave logging enabled since it seems to be a
    workaround, but I wondered if anyone had seem a similar problem - duplicate
    emails only when connected to one specific ISP.

    Why is it always Outlook that experiences all these problems with duplicate
    messages, messages not reliably sending or reliably receiving: I provide PC
    support and 9 times out of 10 if people have these problems it will be if
    they are using Outlook as a client and isn't reproduceable with Outlook
    Express, Windows Mail, Windows Live Mail or Thunderbird.

    The ISP, according to speedtest.net, is BT. Could it be significant that
    access is via a captive logon: a password free WiFi connection which then
    prompts you to log on in a browser session using a user ID and password
    which are allocated by the owners of the holiday cottage.
    NY, Sep 21, 2013
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