Brain teaser of the week

Discussion in 'Windows Networking' started by Don Phillipson, Feb 1, 2008.

  1. No problems, no complaints.
    Internet goes from the ISP's wireless modem by
    wire to the (wireless) router and the downstairs PC
    (Win98) and the upstairs PC (WinXP) reaches the
    world via its wireless card through the router (even
    when the downstairs PC is switched off, which is
    convenient.

    My friend Catherine just sent an email that ( upstairs)
    I peeked at in Mailwasher, then used Outlook Express
    v.6 Send/Receive to download it. Nothing there: no
    problems since it was short and I remembered all that
    a reply needed.

    Later I went downstairs, where the PC had been on
    but idle for 3 or 4 hours -- and Outlook Express had
    received downstairs Catherine's email (and 2 or 3
    junk items that I normally bounce via Mailwasher
    but had never seen.)

    This has never happened before, since the network
    was set up in October 2007. Does it reveal anything
    good or bad about the network?
     
    Don Phillipson, Feb 1, 2008
    #1
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  2. Don Phillipson

    philo Guest



    Nothing unusual that I can see.
    the other machine just downloaded the messages before you saw them in
    Mialwasher
     
    philo, Feb 2, 2008
    #2
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  3. This surely cannot happen (or would be abnormal) because:
    1. After downloading from the ISP's server,
    email is no longer available for Mailwasher to screen.
    2. Events suggest the downstairs PC downloaded
    mail without any command to do so.
     
    Don Phillipson, Feb 3, 2008
    #3
  4. Don Phillipson

    MEB Guest

    Can I play?

    | > |
    | > > My friend Catherine just sent an email that ( upstairs)
    | > > I peeked at in Mailwasher, then used Outlook Express
    | > > v.6 Send/Receive to download it. Nothing there: no
    | > > problems since it was short and I remembered all that
    | > > a reply needed.
    | > >
    | > > Later I went downstairs, where the PC had been on
    | > > but idle for 3 or 4 hours -- and Outlook Express had
    | > > received downstairs Catherine's email (and 2 or 3
    | > > junk items that I normally bounce via Mailwasher
    | > > but had never seen.)
    |
    | |
    | > Nothing unusual that I can see.
    | > the other machine just downloaded the messages before you saw them in
    | > Mialwasher
    |
    | This surely cannot happen (or would be abnormal) because:
    | 1. After downloading from the ISP's server,
    | email is no longer available for Mailwasher to screen.
    | 2. Events suggest the downstairs PC downloaded
    | mail without any command to do so.
    |
    | --
    | Don Phillipson
    | Carlsbad Springs
    | (Ottawa, Canada)
    |
    |

    There are ways, depending upon how the Readers/clients and servers are
    configured.

    IF the downstairs computer is set to automatically poll [timed retrieval]
    the providers for new mail AND delete the copy on the server, then it would
    appear that both upstairs and downstairs would be able to retrieve the same
    mail IF the upstairs computer happens to access the mail first AND is not
    set to remove it, OR if the timing just happens to coincide [manual check
    upstairs, downstairs accessing at approximately the same time].

    On the other hand, IF the upstairs computer is set to download and remove
    those messages, then depending upon WHEN the downstairs computer polled the
    servers, the mail may or may not be available to it. MailWasher likely would
    not have run on either UNLESS configured to do so AND/OR was running when
    this occurred, or is not receiving the mail once the server marks it as
    accessed/downloaded/read.

    Other potentials to be taken under consideration would appear to be:

    Whether the Pop3, hotmail, IMAP, or other servers, had been set to
    automatically mark messages as READ once accessed [read messages MAY not be
    downloaded as they are not NEW (un-accessed) on the server] though they may
    remain on the server, so if neither of the computers are set to remove
    copies from the server or the server doesn't allow this, the mail might be
    either available or not, depending upon how the actual mail service and
    clients are setup {all messages vs. new messages vs. marked/not marked vs.
    synchronization vs. first access vs. removed/moved or not}.

    Whether the messages are actually downloaded or are just being viewed in
    the preview pane [online/direct access verses retrieval and offline READ]
    and the MARK AS READ settings in conjunction (server and client) with the
    previously mentioned aspects AND synchronization settings [mail is not
    marked READ on the server AND/OR mail copy not removed from server UNTIL
    read} until next sync [offline verses online or new download, at which time
    this occurs for READ, deleted, moved, and sent messages, again depending
    upon client and server settings].

    As you previously had phone access, these settings would not have been so
    important, but as you now apparently access the NET via on
    access/request/always on (per your other postings), these settings should be
    checked and re-configured for such access. Or are you still phone line?

    Additionally, if your ISP is configured to download directly from your
    services or one of your services/servers is [one account collects from other
    accounts], it may be set to NOT synchronize/remove/mark as READ/ACCESSED,
    until one of the clients sends that data back to the ISP/service {which then
    transfers that back to the actual mail/news servers}. So pulling messages in
    this fashion MAY allow multiple views {and apparent message loss} IF one
    client collects messages directly and the other client collects messages via
    the collected source once the servers are synchronized.

    But then what do I know, I just pulled this from some dark depth of my
    brain as seemingly reasonable, this may be just a bunch of letters on your
    screen ... ;Q
     
    MEB, Feb 3, 2008
    #4
  5. Don Phillipson

    Mark Dormer Guest

    Open Outlook Express on the downstairs machine.
    Select Tools - Options
    Is "Check for new mail every (30) minutes" ticked?
     
    Mark Dormer, Feb 5, 2008
    #5
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