getting duplicate emails with Mail app :(

Discussion in 'Mac Apps and Mac App Store' started by shake, Sep 9, 2004.

  1. shake macrumors regular

    Aug 14, 2002
    Toronto, CANADA
    hello all,
    i have been getting duplicate emails for a while now(17" powerbook 1.5ghz g4, 10.3.5). sometimes i get 12 copies of the same email! i tried trashing the prefs, and that helped for a few days, but it keeps coming back. I also set up and tested my mail account on another machine, and that machine never gets doubles.

    has anyon else ever seen this ?

    any help is greatly appreciated,
  2. wrldwzrd89 macrumors G5


    Jun 6, 2003
    Solon, OH
    I sometimes get duplicate Mac Forums Mailer messages, but none of my other mail gets duplicated. Maybe deleting your Mail caches will help? The cache is located in two places:
    1. ~/Library/Caches/Mail
    2. ~/Library/Mail/(mailboxname).mbox/Caches/

    To view #2, you have to control-click the .mbox file and choose "Show Package Contents" from the shortcut menu.
  3. jsw Moderator emeritus


    Mar 16, 2004
    Andover, MA
    Have you set up the account to delete mail from the server as soon as it's downloaded? That might help. Also, is your system time correct?
  4. shake thread starter macrumors regular

    Aug 14, 2002
    Toronto, CANADA
    yes, i have setup he app so it deletes emails after downloading.
    and my system time is accurate, it's set to "Set time automatically using Apple US server". and th emails come sometimes 20 or 30 minutes apart. sometimes 2 or 3 minutes apart.
  5. jsw Moderator emeritus


    Mar 16, 2004
    Andover, MA
    I know this sounds like a pain in the butt, but perhaps you could set your email to download manually. Then, once an hour or so, use the browser-based way to get at your email (presumably there is one) to ensure that in fact you only have one of each message (to check that it isn't an ISP issue that just happened to not flare up when you used the other machine). Then manually get your mail. If duplicates show up in a given mail download, it's almost undoubtedly a Mail bug. Once a given group of email has been downloaded, use the browser window again to ensure that there's nothing left on the server. At least this way you should be able to somewhat isolate the problem - mail not getting deleted on the server as opposed to funkiness within Mail.
  6. shake thread starter macrumors regular

    Aug 14, 2002
    Toronto, CANADA
    actually, i spoke to customer support for my ISP, and the rep checked my mail on the server and even told me how to check it myself with a browser.
    and there are not any duplicate emails on the server side...

    i just tried trashing the Mail caches (as someone recently posted) and preferences again. Let's see how long it lasts...

  7. shake thread starter macrumors regular

    Aug 14, 2002
    Toronto, CANADA
    after a few days, duplicate emails have come back.

    any ideas?
  8. ETK999 macrumors newbie

    Sep 13, 2008
    did you check your Rules? I once accidentally set a rule to perform the action of moving an e-mail to a specified folder AND copying it to that folder as well (which I didn't want) - when I removed the second action (copying) that resolved the issue of getting duplicate e-mails.
  9. jesseprudhomme macrumors newbie

    Oct 2, 2009
    My solution

    I realize this thread has been dead for a while now, but if anyone else ever stumbles across the same problem, I may have your solution.

    It's simpler than you would think.

    Check to see if you have two account that are the same. I had two gmail accounts setup in mail. This must have happened when I importrted my settings or synced using mobileme. When using mobileme for the first time, it gives you the options to either merge or replace information on your computer. I'm assuming that if you select "merge," you will end up with two mail accts.

    Note: the screenshot included is only for showing you want I'm talking about. the second acct wasn't actually an IMAP acct.

    Attached Files:

  10. AuPhalanx macrumors regular


    Apr 23, 2004
    Wilkes-Barre, PA
  11. feuerschlange macrumors regular

    Oct 13, 2008
    app for finding duplicates?

    Thanks for the link Tony.

    I have these issues since a few days. It might be coincidence, but fits nicely with the other issues, Snow Leopard brought me.

    Is there a app for finding duplicate mails, presenting them logically, that let's me pick the one mail, I want to keep and gets rid of the duplicates?

    I find myself getting my mails in order too often for my taste lately.
  12. seamuskrat macrumors 6502a


    Feb 17, 2003
    New Jersey USA
    Alas, I too have the same issue. Headed over to the Apple thread and there is not much in the way of solutions.

    Pretty disappointing.
  13. tunanut macrumors newbie


    Jan 16, 2004
    This happened to me with only certain .mac e-mails after I went from Tiger to Leopard. Any other workarounds?
  14. oommd macrumors newbie

    Aug 4, 2010
    This has been very interesting and helpful. I just started getting dups after setting up a new mail server. running Snow lep for about 4 months and this issue of dups started after hooking up to new mail server.
    They are not really dups, its just they are indexed twice and if I delete one they both disappear. A rebiuld of the box clears the issue for the moment but it starts again after awhile.

    Im currently letting my mac mail rest for an hour after deleting the index file.
    I run IMAP so the hour is to let the server finish out any processes it might be running on that mail account.

    I will post my conclusion in 24 hours to see if that fixed it.
  15. oommd macrumors newbie

    Aug 4, 2010
    Well it didnt take long for that to NOT work.

    Complete new index and dups in my inbox.
    I may try to have it rebiuld the MessageUidsAlreadyDownloaded3 , But I havent read more than that " should " have fixed it.

    I may have one last trick up my sleeve.
  16. tdstout macrumors newbie

    Dec 12, 2006
  17. tortoisehugger macrumors newbie

    Dec 30, 2010
    duplicate emails

    As a dot mac subscriber with an email ending I was automatically added an account email with the new I now have the 2 email accounts through Apple and so mail sent to one account is automatically generated to both accounts. That seems to be why I am getting duplicates....but what to do about it is beyond me!
  18. oeokillertofu macrumors newbie

    Feb 11, 2011
    Similar Problem

    I am having a problem with duplicate e-mails. I used to have Mac Mail set up on my iPhone and then a POP set up in my Mac Mail desktop. Now, I have a Macbook Pro, so I set up the Mac Mail, but it set it up with an IMAP. It's a disaster! I have about 15 copies of every e-mail I send and receive. I put them in the trash, and when I search for something the ones in the trash come up as well as sent mail, all mail, it's a disaster. How can I fix this? I wish I could just go back to POP and just re-check the e-mail rather than have this duplicate e-mail situation on my laptop.
  19. tsellon macrumors newbie

    Jan 28, 2008
    Ramsey, MN
    Repetitive emails being sent OUT from my mac mail

    I have a client who is receiving the same email over and over for about a month now. He was receiving a couple of other emails I sent him repeatedly as well, but this particular email filled his box up 12 times (so far) today and I originally sent it to him nearly a month ago. He says I am the only person this repeat email problem is happening from. He's driving me nuts with his 10-12 times a day "updates" and pleading with me to take care of the problem. Does anyone know if it's a problem with the MobileMe server? Or an issue with his?
  20. nj2nm10 macrumors newbie

    Oct 10, 2011
    Duplicate EMails using Mail, iPhone, and MobileMe

    I had a similar problem with duplicate emails using Mail, iPhone, and MobileMe. There would be 2 of the same message, but only on my iPhone, not my desktop.

    The culprit seems to be with MobileMe account being the “middleman”.

    Step 1
    Check to see if your MobileMe System Preferences are set for automatic updating:
    [System Preferences > Internet & Wireless > MobileMe > Sync tab]. The “Synchronize” box should be checked, and the pulldown box set to “Automatically”.

    With these settings, MobileMe will automatically sync all of your selections between your desktop and iPhone.

    Step 2
    So when you connect your iPhone to Sync using iTunes, you need to make sure that the options under the “Info” tab are DESELECTED (Sync Address Book, Calendars, Mail). After all, if MobileMe is set to sync automatically you don’t need this, right? So uncheck these and remember to punch the “Sync” button on the bottom of the screen to activate your changes.

    Step 3
    Reboot your iPhone and send yourself a test email from your desktop. Should have a beautiful single message.

    I hope this may also help troubleshoot other duplicate email issues.
  21. Subrez macrumors newbie

    Jan 18, 2012
    Use IMAP instead of POP to retrieve emails

    I finally found the answer to this dubious multiple duplicate emails problem for the 'Mail' app.
    Well it worked for me anyway. Instead of using POP, use IMAP to retrieve emails from the server.

    I had to remove/delete the mail account first then recreate it. Where the application automatically uses POP in the drop down, change it to IMAP. The rest is based on your login information.

    Hope this helps.

    Below is an excerpt from this link:

    IMAP vs. POP

    The basic difference between IMAP and POP3 is that with POP3 you work most of the time offline because you only connect to the server to download new mail to your computer. This means you have to check your server mailbox periodically. Access from multiple computers/clients is possible by leaving your new mail on the server, but problematic. IMAP, on the other hand, allows you to always work with your mail live on the server. This means that a connection is made and typically maintained through your entire email session. To save bandwidth, messages viewed once are cached on your computer and you can also set up synchronization to store permanent copies of messages locally. Second, IMAP allows you to work with an unlimited number of folders, which can be nested, all of them being stored on the server, always accessible from any computer in the world. This allows to shift all email filters and Spam handling to your email server (see Procmail and Spamassassin).

    Basically, IMAP is recommended for a modern email use, unless contraindicated by very special circumstances (e.g. a limited and expensive Internet connection). ###
  22. Big Papoo macrumors newbie

    Jan 22, 2012
    For me, it was just a matter of :
    + In Gmail :
    - Checking the System "Sent messages [ ] Show in IMAP" label (not sure if this is the right label in EN because my interface is FR)
    - Unchecking the System "All messages [ ] Show in IMAP"
    - Unchecking the "Sent messages [ ] Show in IMAP"
    + In :
    - Unchecking "Store messages on the server" (as this is automatically done if your SMTP is gmail, otherwise leave it checked).

    Hope this helps, it works for me...
  23. grantdoug macrumors newbie

    Sep 27, 2009
  24. grantdoug macrumors newbie

    Sep 27, 2009
    Complete Archive of Gmail - 30,000 messages

    To protect my privacy from Google, I archived all 1gb of 30,000 Gmail messages from 2004 on using POP. I was not able to get all that history from IMAP.

    I archived them in, sampled the archive using attachment views and other tests and confirmed everything was copied. Then, I deleted them on Gmail's server, keeping just 6 months of my data instead of 8 years.

    Due to my own error, there are some duplicates in the archive which I didn't noticed until I saw the little 'there is one duplicate' link in the message window.

    Is there a utility to remove these programatically? I have already tried the rebuild command in


  25. Parisparee macrumors newbie

    Feb 15, 2012
    Emails duplicated in Mail

    I was having a problem with mail duplicating after I went onto Mobile Me to find an email. I suddenly had 4,000 emails flooding into my Mail App on my computer.

    I rang Applecare and they said it was because iCloud was having transition problems. He told me to:

    - Go to Mail
    - Go to Mailbox on top toolbar
    - Click Rebuild at the bottom

    This will prevent it from happening again, but you may have to delete some duplicate emails that are still there.

    Hope this helps anyone with similar problems.

Share This Page