You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Multiple Copies of Emails

I installed Snow Leopard yesterday. When I came down this morning I discovered that all of my rogers.com email boxes had 4 copies of each email in each in box. The me.com mailbox did not have this issue. I put them all off-line when it appeared that copy number 5 was starting to download. The box to delete files on the server had ben reinstated for one of the rogers accounts, which had not been set in Leopard. I have used this computer since late May using Leopard without this problem. Any suggestions? I haven't yet called Apple or Rogers.

iMac 24 inch May 2009, Mac OS X (10.6), Toronro

Posted on Aug 29, 2009 10:38 AM

Reply
Question marked as Top-ranking reply

Posted on Aug 29, 2009 10:54 AM

I am experiencing a similar issue. Two copies of each message addressed to my company Exchange account. After I open and read one copy, the extra one disappears when I attempt to open it. I have not yet found a work around. I am reluctant to trash my mail prefs file because that action requires that I reenter all my account information for six accounts. Deleting the mail caches and rebuilding them did not remedy the problem.
397 replies

Oct 26, 2009 7:36 PM in response to Lance Lawton

Bummer!

============
"Hate to be a wet blanket. But I wouldn't expect lasting joy from any of the strategies suggested so far. I've tried nearly all of them ... trash MessageUidsAlreadyDownloaded3 ... Mail in 32-bit mode ... exclude MessageUidsAlreadyDownloaded3 from TM backup ...

Result from each one singly and various combinations thereof was essentially the same: respite from duplicates for rest of the day / duplicates back the following morning."

Oct 27, 2009 9:59 AM in response to p-hughes

I think it is answered because the OP found the advice to purge the MessageUidsAlreadyDownloaded3 file, and relaunch Mail to work. They may have subsequently found things messed up again and not removed the Solved, but if so, that would be due to the issue with TM. Let's hope that TM will be fixed with the next update, but for those either using IMAP only accounts, or not using TM it is either not a problem or fixed by purging that aforementioned file. It should be noted, however, that some ISPs are known to find more problems with that file, even before Snow Leopard.

Apple would not mark any topic solved -- only the original poster can do that.

Ernie

Message was edited by: Ernie Stamper

Oct 27, 2009 10:49 AM in response to String Bass

I thought I would add my name to list of people affected by this. Now my email is rejecting my POP password about every minute or so which means if I leave email open, I get a dialog box asking me for the password constantly. Sometimes if takes it, sometimes it takes 3 times entering sometimes I just have to quit email. "Mail" is a an absolute mess right now.

Oct 28, 2009 10:19 PM in response to SueUSueU

Despite all the complexity of this issue, the thing I keep coming back to in my case is this:

Whilst running Mail.app under 10.6.x I continually had this problem. For the last 27 days I've been running Postbox as my mail client accessing the same accounts and I have never had any duplicate emails on the Mac.

So whilst ISPs and voodoo may be involved here it seems that the common elements are 10.6.x and Mail.app

Regards

Mike

Oct 28, 2009 11:06 PM in response to Pelorus1

You're absolutely right.

So how do we bang a metal cup on the bars of our cell? I have AppleCare so I guess I could just call, but if you look at the SL "Mail and Address Book" subsection of the forum, this thread is the most viewed by several orders of magnitude (15,447 views with 278 replies, nothing else is even close). Does anybody from Apple ever pipe up and step in?

Oct 29, 2009 4:47 AM in response to String Bass

I must add myself to this list. I am running Snow Leopard on my Macbook Pro at work and on my iMac at home. The home machine is off when I'm at work. I am not using Time machine on either. My work email account is on an Exchange server, accessed through Exchange (not imap or pop). On my home machine, every message from work comes down twice. My non-work email accounts (principally gmail through imap) are fine. This is an annoying problem.

Multiple Copies of Emails

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.