User profile for user: PaulM22
PaulM22 Author
User level: Level 1
17 points

Mail program continually streaming data

I recently attempted to move an iCloud mailbox (with contents) from iCloud to "On My Mac." It seemed to work, but "Moving Message 1 of 34" constantly appears in the lower left corner of my mail window (beneath my my list of mailboxes on iCloud). Further, my router indicates that there is a constant stream of data accessing the Internet from my Mac. This is hanging up access on my other devices. Worst, I received a notification that my e-mail storage allocation on iCloud has reached the maximum. As a temporary fix I expanded my iCloud storage amount.


Note that If I reboot my iMac the same problems starts all over again. Is there a way to totally "restart" or "reload" the mail program and stop this constant stream of info? Driving me crazy!


Running HighSierra 10.13.4 (beta) on a late 2013 27-inch iMac with 32GB RAM


Thanks for all suggestions!

Paul

iMac, macOS High Sierra (10.13.3)

Posted on Mar 25, 2018 7:30 AM

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User profile for user: Eric Root
Eric Root
User level: Level 10
685,317 points

Posted on Mar 25, 2018 8:35 AM

Something you can try.


Do a backup, preferably 2 on 2 separate drives.


Quit Mail.


Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Go to Library/Containers/com.apple.mail. Move the folder com.apple.mail to your desktop. You must move the entire folder, not just the contents.


Restart, re-launch 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. You can then put the folder in the Trash. If the problem remains, return the folder to where you got it replacing the one that is there.


If that doesn’t solve it repeat the above using Containers/com.apple.MailServiceAgent.

Information learned from Linc Davis. Thanks to leonie for some information contained in this.

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Question marked as Top-ranking reply
User profile for user: Eric Root
Eric Root
User level: Level 10
685,317 points

Mar 25, 2018 8:35 AM in response to PaulM22

Something you can try.


Do a backup, preferably 2 on 2 separate drives.


Quit Mail.


Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Go to Library/Containers/com.apple.mail. Move the folder com.apple.mail to your desktop. You must move the entire folder, not just the contents.


Restart, re-launch 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. You can then put the folder in the Trash. If the problem remains, return the folder to where you got it replacing the one that is there.


If that doesn’t solve it repeat the above using Containers/com.apple.MailServiceAgent.

Information learned from Linc Davis. Thanks to leonie for some information contained in this.

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Mail program continually streaming data

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