Q: Mail slow after Sierra upgrade
-
Sep 30, 2016 1:55 PMby John Galt,I can understand how that would be annoying. I suggest rebuilding the Mailbox, or all Mailboxes, according to the following: Mail for Mac: Rebuild mailboxes.
It will take a few moments to complete, depending on the total number of messages in those Mailboxes. Until it finishes, it's normal to see the contents of Mail's message preview column flash or briefly disappear as it rebuilds the message database. Mail's operation will also be slow until it finishes.
It would be prudent to back up your Mac prior to doing that, but if rebuilding a Mailbox causes any email messages to be deleted they were probably not recoverable anyway. I recommend backing up in this particular circumstance only in an abundance of caution, but it's something everyone ought to be doing.
-
Oct 4, 2016 2:38 PMby John Galt,If the accounts are IMAP or Exchange accounts you can certainly delete them, and re-enable them using Internet Accounts. If they are POP you need to save your emails before deleting the account, assuming you don't want to lose those emails.
I don't know if that will fix the problem though.
-
Oct 7, 2016 1:48 AMby Ouzone,Same problem here - And Mail is not the only app that has performance issues!
I have no intention to delete my mail accounts and then re-create them. Mainly because I will lose my sent mail - or at least it's possible to lose the link between the original message and the response. That is not a solution for this. Rebuilding mailboxes would be a solution, if it would work. But it did not help and it has similar disadvantages.
Why do I feel that every recent Mac OS update should be a clean install?
My solution: Take a day off and reset everything! That's the way to do it - or buy a new mac
But seriously, I would love to see a real solution for this - or a quick fix update for Sierra.
-
Oct 10, 2016 12:44 PMby sakaguchinet,Same issue here. After upgrading to 10.12 the mail app got very slow. And it is only the mail app. Almost all actions done within mail are taking some several seconds.
Switching (by clicking) between different mailboxes e.g. Inbox takes about 10sec. Opening one Email takes about 2 sec.
I do have about 100.000 Emails in all my boxes. With 10.11 everything was fine and reacting within 1 sec.
Rebuilding the mailbox did not bring any improvement.
My system: MacBook Pro Retina 15" (Late 2012).
-
Oct 10, 2016 1:14 PMby Tom Kramer,Yes, it's only the mail app, though switching between mail boxes seems normal. My problem seems to be only in my icloud account which is my main account and contains thousands of emails. My gmail account, which I rarely use, works normally, displaying the message almost instantly. Seems like this may be related to having a lot of emails in the account. I'm going to wait to see if an update fixes this. If not, then I might delete the account or add it back in or maybe reinstall the OS.
-
Oct 13, 2016 8:38 AMby pfriedel,My inbox is the antithesis of inbox zero (40,000 read messages and counting), but it seems to help if I apply the unread filter. It feels like Mail is going into an expensive inbox display re-threading after every deleted message, but if I limit the view to only a few messages, it seems to be a bit better for me.
