Previous 1 2 Next 27 Replies Latest reply: Apr 2, 2015 3:53 AM by @ntmby
Raymond Fox Level 2 (255 points)

This morning, Mail started to act very strangely.  It suddenly grouped dozens upon dozens of unrelated emails into a "conversation."  These emails are from various people on totally different topics, but they're lumped together as a conversation.  Particuarly baffling as I had View > Organize by Conversation selected, which resulted in making it incredibly difficult to find emails in any logical location. A reboot did not help.


Is there a way to separate emails out of what Mail has deemed a conversation?  Even with the Organize by Conversation option turned off, dozens of blue highlights appear highlighting completely unrelated emails. Very distracting.

3GHz Mac Pro, Mac OS X (10.7.2), 12GB RAM
  • CT Level 6 (17,545 points)

    Long shot, but something harmless to try:


    Select mailbox and then use Rebuild from the Mailbox menu.



  • Raymond Fox Level 2 (255 points)

    I appreciate the suggestion.  It was worth a shot, but alas, it didn't work.  Random emails are still linked in conversations.  :/

  • timroy Level 1 (30 points)

    Try this; (again a longshot), uncheck the box to thread messages, save, then re-check the box. This may force a re-index.

  • Raymond Fox Level 2 (255 points)

    I tried turning off View > Organize by Conversation and then turning it back on, if that's what you mean.  But it didn't work.  I didn't see any opportunity to save the settings.  Is this what you had in mind?

  • jikkata Level 1 (5 points)

    Yeah I have absolutely the same issue. Any help with this would be greatly appreciated. The Apple Mail app becomes  useless when random emails are grouped in conversations (totally random receipients and times of the emails that have nothing in comon)..

  • coppit Level 1 (0 points)

    Has anyone figured out what the grouping criteria are that Mail uses? I have the opposite problem -- some emails are not grouped that should be.

  • mhutson Level 1 (0 points)

    This began happening to me when I upgraded to OS 10.10 (Yosemite). Most emails stay separate, but there's a growing conversation that mysteriously groups unrelated conversations with four different people on four different topics. I wish I could figure out what Mail thinks they have in common.

  • RajDaBooya Level 1 (0 points)

    I'm having the same issue as mhutson and it's highly irritating. I deal with 30-40 different clients and over a 100 different suppliers and all my emails are mixed around and grouped into random conversations which makes it very difficult to organize my mailboxes. Does Apple even read these comments? Seems as this has been a problem since 2012 and there's nothing they are doing about it. They manufacture cheap low costs gadgets in China but manage somehow to sell their products for thousands of dollars making a huge profit but can't simply fix real issues that real people deal with. My business is suffering now with this glitch in their OS and I want answers.

  • nykcol Level 1 (0 points)

    So this worked for me, unsure if all steps are required but since it worked this is what I did.


    Go to View in the nav bar at the top, deselect 'Organise by Converstaion'

    Now go to Preferences>Viewing and deselect 'Include related messages' (it's 3rd from the bottom)

    Now all of your emails will be single emails, not ideal.

    Return to View in the nav bar and select 'Organise by Conversation' again.


    All of your previously unrelated emails that were clumped together should be separated and only relevant ones are linked.

    Hope that helps.

  • RajDaBooya Level 1 (0 points)

    Sorry but it didn’t work. Having the same issue.


    Why is this happening? It’s Yosemite that is giving this problem.



  • Aggienator Level 1 (0 points)

    This worked for me with the added step of closing Mail and re-opening after changing the preferences and before selecting 'Organise by Conversation' again

  • RajDaBooya Level 1 (0 points)

    I did that but still have 201 emails that are not in any way related to each other grouped. Maybe this is because of Yosemite? Please help

    as this is getting to be really frustrating.



  • Nero1975 Level 1 (0 points)

    FACK YOU APPLE!!! FIX THE FACKING PROBLEM!! YOUR OS X systems suck ARSE!!! They always have problems. Your products are FACKING CRAP now that Steve is gone. You put no real effort into quality anymore, you just rush crap out the door so you can make your millions!!!


    Yes, my mac mail is lumping totally unrelated messages together and keeps doing it. AND IT PEESES ME OFF!!!!!!

  • Tracy E Level 1 (125 points)

    Same issue here. Seems to have started recently. I currently have a Conversation with 54 emails comprised of more than a dozen different email subjects from 20 different people. Ugh.


    I notice that they are all from/to people I regularly correspond with. No junk mail messages or unknown people in this group. So they are all important messages. When I search for one of them, the most recent message in this conversation appears, so at a glance that search result seems unrelated. At least now I know to dig deeper to find emails.


    This is terribly broken. Hope Apple gets to this soon.

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