Re: Yahoo account gets old emails showing up as new emails creating duplicates

Thu, 02 Jul 2009 12:35:16 -0700


Alan, thanks for that excellent explanation!!

John

alanrf wrote: 
The authors have - you just need to use the solution.

This problem is caused by Yahoo.  Thunderbird itself (not these
extensions) decides which message to download from the server.  The
extension mimics a POP server and hands to Thunderbird a list of the
messages on the server.  Thunderbird keeps a list of the message ids
on the server that it has downloaded already.  It compares that list
with the new up to date list and downloads the ones it has not seen
before and then Thunderbird updates its list of downloaded message.

Unfortunately, Yahoo has a very unhelpful habit of regularly changing
the message ids on the server (their choice - they are not providing a
POP service here).
So the next time the list is given to Thunderbird it appears that all
the messages have never been seen before and Thunderbird downloads
them all again.

The Webmail Author provides the ShortId option in the Yahoo extension
options.  If you keep messages on the server for more than a couple of
days then you need to use the ShortId option - it shortens the message
ids to eliminate the part that Yahoo changes.  Selecting the ShortId
option has the downside that it will cause a one time re-download of
the messages on the server, after that you should be safe from the re-
download problem.

On Apr 3, 9:42 am, pinhead <[email protected]> wrote:
  
As reported earlier in May of 2008.  This problem is on-going and must
be a bug in WebMail.  The only solution I have found is to move old
messages in my Yahoo Inbox to an another folder that WebMail-Yahoo
does not access.  I can only have about 40 messages in my Inbox before
it will start redownloading old messages.

Ref:http://groups.google.com/group/thunderbird-webmail-extension/browse_t...

It would be great if the authors could solve this problem.

Thanks!

Keywords: re-download, old messages, duplicate, Yahoo


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