Currently Being ModeratedJun 10, 2013 1:27 PM (in response to Jack Mayer)
Do a backup.
Take notes of all account information or take screen shots. You may need to set the accounts up again. Quit Mail.
Copy the line below.
While holding down the option key, select Go/Go To Folder from the Finder menu bar. Paste the line into the window. You won’t see it.
Move the folder com.apple.mail to your desktop. You must move the entire folder, not just the contents.
Relaunch Mail and test. If the problem is solved, recreate any required Mail settings and import any emails you want to save from the folder on the desktop. Delete the folder on the desktop. If the problem remains, return the folder to where you got it replacing the one that is there.
Information learned from Linc Davis.
If you prefer to make your user library permanently visible, use the Terminal command found below.
Currently Being ModeratedJun 10, 2013 2:03 PM (in response to Eric Root)
Thanks for the info. I did exactly as you wrote. All my emails and appropriate folders (On My Mac & iCloud) are still there. I tested two features/problems immediately after performing this action. I selected four unused rules, clicked remove, then OK. Closed Mail and reopened. The "removed" rules were still there. I selected an email in the inbox, selected "Add Rule," named the rule and selected a move-to folder. The selected email was moved to the new folder. I closed Mail and reopened it, once again. The new rule was missing. The program is simply broken!
Currently Being ModeratedJun 10, 2013 4:06 PM (in response to Linc Davis)
"You can read and write" is showing in Sharing and Permissions.
The "Locked" box IS NOT checked.
The modified date is September 12, 2012 at 9:26 PM (curious, since I have modified it dozens of times in the past few days).
Currently Being ModeratedJun 10, 2013 5:28 PM (in response to Linc Davis)
Again, did as suggested. Opened app, removed a rule, closed and reopened. Rule still there and the app did not replace the .plist file. It was apparently working off the .backup file that was left in the folder.
Currently Being ModeratedJun 25, 2013 6:52 PM (in response to Linc Davis)
Hey Linc and everyone,
I have been having the same problem, I had a rule that BCC'd an associate on my business emails. The rule apparently wasn't setup properly and applied the BCC to all my email accounts.
The rule is deleted, yet still shows up, I updated software and followed Linc's idea to help the MessageRules.plist reset itself, no such luck.
Would love some help.
Currently Being ModeratedJun 27, 2013 11:22 AM (in response to Jack Mayer)
I don't have a solution for this, but all this copying/moving mail folders from here to there doesn't seem to do anything for me. My issue is similar: Rules is making stuff up as it goes along. Does it "think" that rules are made to be broken?
I've found that whenever I create a new rule and apply it, before closing the dialog, the correct mail is moved to the correct folder, but in addition, about 30 messages that have no relevance at all to the rule I created, are moved to my Spam folder! I've tested this a number of times and it's always the same 30 or so messages and there is no correlation whatever to the rule or to Spam or anything else that I can discern.
This is on a brand new MacBook Pro running Mt Lion. I never had this problem in Snow Leopard, so I expect it is a bug in this version of Mail. There should be no reason that email is being moved like this, and we shouldn't have to go through all these steps to test it ourselves, that's Apple's QA department's job.
My "solution" is to stop creating rules until Apple comes up with a fix. There is a lot of other weirdness to this version of Mail.