Duplicate Email - BIG PROBLEM!

This is definetly a SL issue - I am not using Exchange. I have read almost every thread I can find on this subject - different symptons, multiple 'fixes', different email providers and servers, POP, IMAP, etc... all with one common theme - Mail on SL. I have tried all of the 'fixes' (if applicable) within this thread. I deleted the 'messagealreadydownloaded3' file which had no positive effect. I can't immediately remove the messages from the server because I need to access remotely via iPhone and rebuilding the mailbox had no effect. It seems very simple to me now - The 'Mail' program is not accurately marking downloaded messages as already being downloaded. Apple needs to fix this issue fast or PC might be able to knock out Mac in the newest commercials.

I am having a similar issue -

When I shutdown or restart my Mac Pro - it does an 'install' that takes nearly half an hour. When it finally boots up The emails I checked when the computer was last on are all there AGAIN.

I am guessing it is something that is 'stuck' from the last update as it is since the 'required restart' after that patch that this has happened.

Any help would be appreciated as this is not good with so many POP email addresses.

And? That's windows software. Which, unless someone is using macdrive from windows, that point is totally a moot one.

Totally a let-down when it comes to solutions. Maybe next time a solution that works on OS X itself? (wouldn't hurt, since, ya know, you're on the Apple site)

Thanks much! This fixed it for me. I had the repeating email problem after 10.6 upgrade.

However....shame on Apple! Wasted several hours resolving this. Not supposed to have these problems with Mac OS stuff, right?
Again, thanks for posting the fix.

Same problem as well. Takes so long to delete hundreds of read e-mail, just to have them reappear - my wife is going to kill me for updating to Snow Leopard so soon. 😟

Another me too. Happened in my wife's account last night, and mine has just redownloaded about 80 emails for me.

So I guess it looks like a Mail / SL issue, rather than one with our ISPs.

well, I have followed the route given finder - library - mail and have checked in every file and cannot locate MessageUidsAlreadyDownloaded3 to delete it???

I have the same problem, so I will try the fix tonight. This is so annoying!

Hi Everybody,

I had the same problem. It was an easy fix for me:

On the Menu Click: Mailbox -> Rebuild

And it was fixed for my gmail account. Be sure to select the right mail box.

From my own experience I recommend Clone Remover. It is useful utility for searching duplicate emails, files and folders.

http://www.moleskinsoft.com

Message was edited by: antony09