----- Original Message -----
From: "John Kielkopf" <[email protected]>
To: <[email protected]>
Sent: Wednesday, March 21, 2007 11:41 PM
Subject: [xmail] Re: Receiving Mail multiple times
> Also, you sent this message the list 4 times. Did you intend this?
I have received this message ("I've had the issue both with local
clients...") only once.
Ivo
>
>
> Aaron Fransen wrote:
>> I've had the issue both with local clients and remote clients running
>> over a very expensive MPLS network, and in all the scanning I've done
>> I can't see any issues with connectivity.
>>
>> File locking? Hm, it's possible, however there's no AV software
>> running on the server (not live, just batched once in a while and not
>> when these problems are happening).
>>
>> In terms of the sequence of events, the mail client I wrote (I can't
>> speak to how Outlook is having the same problem, but with my program I
>> can!) it fetches each email individually then sends the command to the
>> server to delete it, then processes the next message. Maybe I should
>> do it the other way? Process them all THEN go back and delete them?
>>
>> The duplicates happen right away too, not during the next POP3
>> session; that is, as soon as the user clicks "Check Mail" he/she'll
>> get duplicates (or triplicates) of the incoming mail immediately
>> without waiting for the next check.
>>
>> On 3/21/07, John Kielkopf <[email protected]> wrote:
>>
>>> Things to check:
>>> 1) Thoroughly check network connectivity to the mail server from the
>>> problem clients.
>>>
>>> 2) Any possible file locking conflicts? Is there anything running on
>>> the server, possibly antivirus software, that might be locking the email
>>> in the server's mail directory?
>>> Thought of what could be happening here:
>>> a) Client retrieves all mail via pop3, marking them for deletion.
>>> b) Something on the mail server is still holding the files open for
>>> read (on demand AV scanner maybe?)
>>> c) Client quits the pop3 session, and the messages marked for
>>> deletion are now supposed to be deleted
>>> d) Because one of the email messages is locked for read (see: "b",
>>> above), Xmail is unable to delete files, and gives up.
>>> e) Mail has not been deleted, and will be re-downloaded on next pop3
>>> session.
>>>
>>>
>>> Davide would be able to comment on the possibility of "2d" happening on
>>> Xmail. I have no idea if it could even happen, so I may be way off base
>>> here -- but short of a network connectivity issue, I can think of
>>> nothing else at the moment.
>>>
>>>
>>> Aaron Fransen wrote:
>>>
>>>> For some folks they receive emails twice, for some it's three times,
>>>> but not (that I've heard anyways) more than that.
>>>>
>>>> An example: Joe Smith comes back from holidays, and has 50 emails
>>>> sitting there for him. He receives each and every one three times
>>>> exactly, ending up with 150 new emails in his inbox.
>>>>
>>>> Jane Doe checks her email every morning, and most mornings ends up
>>>> receiving two of every email.
>>>>
>>>> Note that it's not selective: If a user is going to have this happen,
>>>> it's going to every single email they happen to be retrieving at the
>>>> time. If it's not going to happen, it's not going to happen on ANY of
>>>> the emails they are retrieving.
>>>>
>>>> Aaron
>>>>
>>>>
>>>> On 3/21/07, Hal Dell <[EMAIL PROTECTED]> wrote:
>>>>
>>>>
>>>>>> I've tracked this as much as I can and this is what I've found: At no
>>>>>> time
>>>>>>
>>>>>>
>>>>> do the messages
>>>>>
>>>>>
>>>>>> exist on the server twice...they are *only* received twice by the
>>>>>> client.
>>>>>>
>>>>>> It does seem to happen to some people more than others, which leads
>>>>>> me to
>>>>>>
>>>>>>
>>>>> believe
>>>>>
>>>>>
>>>>>> it's a "double-click the Send/Receive" button issue, but when I test
>>>>>> it
>>>>>>
>>>>>>
>>>>> the second request
>>>>>
>>>>>
>>>>>> is rejected since the POP server only allows a single connection per
>>>>>>
>>>>>>
>>>>> individual.
>>>>>
>>>>> Are you sure they are *only* received the eMails twice? NOT more then
>>>>> that?
>>>>>
>>>>> Since, I'm coming into the middle of this eMail exchange in the -- I
>>>>> don't
>>>>> have
>>>>> all of the facts of your situation....
>>>>>
>>>>> I had a problem like yours and was caused by the long time standing
>>>>> issues
>>>>> with
>>>>> mail clients on Windows due to the POP3 Tail issue - the symptoms that
>>>>> you
>>>>> state
>>>>> are nearly identical. David created a filter to not allow these
>>>>> messages in
>>>>> the queue.
>>>>> If you don't already have the filter installed I would highly
>>>>> recommend
>>>>> installing it.
>>>>> (Someone on this list may be able to tell the location to download the
>>>>> filter -- I
>>>>> don't see it listed on xmailserver.org -- it was mailed around at the
>>>>> time).
>>>>>
>>>>> POP3 Tail issue is caused by spam and other hacker attempts at DOS
>>>>> targeted
>>>>> at the eMail clients by intentionally corrupting the normal double CR
>>>>> LF at
>>>>> the
>>>>> bottom of the eMail message byte stream.
>>>>>
>>>>> An eMail that is corrupted in this way causes the email client to
>>>>> never
>>>>> complete
>>>>> downloading the eMailbox the mailbox is never cleared and then you get
>>>>> your Emails over and over again. This is a safety mechanism in the
>>>>> client
>>>>> to prevent accidental erasure of eMail messages in the case of a
>>>>> dropped
>>>>> IP connection.
>>>>>
>>>>> I'm not sure this will help you... Let us know...
>>>>>
>>>>>
>>>>> Thanks,
>>>>> Hal Dell
>>>>> Managing Partner
>>>>> ePodWorks.net, Inc.
>>>>> PO Box 22
>>>>> Willow Grove, PA 19090
>>>>> +1-215-830-0662 (phone)
>>>>> +1-866-549-4652 (fax)
>>>>> Need Support send eMail to [EMAIL PROTECTED] !
>>>>>
>>>>>
>>>>> -
>>>>> To unsubscribe from this list: send the line "unsubscribe xmail" in
>>>>> the body of a message to [EMAIL PROTECTED]
>>>>> For general help: send the line "help" in the body of a message to
>>>>> [EMAIL PROTECTED]
>>>>>
>>>>>
>>>>>
>>>>>
>>>> -
>>>> To unsubscribe from this list: send the line "unsubscribe xmail" in
>>>> the body of a message to [EMAIL PROTECTED]
>>>> For general help: send the line "help" in the body of a message to
>>>> [EMAIL PROTECTED]
>>>>
>>>>
>>>>
>>>>
>>>
>>> -
>>> To unsubscribe from this list: send the line "unsubscribe xmail" in
>>> the body of a message to [EMAIL PROTECTED]
>>> For general help: send the line "help" in the body of a message to
>>> [EMAIL PROTECTED]
>>>
>>>
>>>
>> -
>> To unsubscribe from this list: send the line "unsubscribe xmail" in
>> the body of a message to [EMAIL PROTECTED]
>> For general help: send the line "help" in the body of a message to
>> [EMAIL PROTECTED]
>>
>>
>>
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe xmail" in
> the body of a message to [EMAIL PROTECTED]
> For general help: send the line "help" in the body of a message to
> [EMAIL PROTECTED]
>
>
-
To unsubscribe from this list: send the line "unsubscribe xmail" in
the body of a message to [EMAIL PROTECTED]
For general help: send the line "help" in the body of a message to
[EMAIL PROTECTED]
