I use Messages on my Mac as well as my iPhone.

Whenever I log into my Mac, notifications pop up for each Message I've received since the last time I logged in, even though I've already checked them on my iPhone.

How can I prevent this?

I like having new message notifications appear, but it's annoying to see the whole day's message history every time I log in..!

  • Have you turned on power nap? This might help it realize the messages were already read. Support guide here: support.apple.com/en-us/HT204032
    – owlswipe
    Commented May 28, 2016 at 15:05
  • Thanks John, it seems like that could work. I've just enabled it on my machine, so we'll see what happens..!
    – BizzyBob
    Commented Jun 2, 2016 at 2:35
  • Sounds good, let me know if it works or not (I can keep digging for you).
    – owlswipe
    Commented Jun 2, 2016 at 11:01
  • Hey @JohnRamos..! Power Nap did the trick. I'm no longer seeing loads of message notifications when I log into my macbook..! Thanks..! Please post your solution as an answer and I'll accept it.
    – BizzyBob
    Commented Jun 5, 2016 at 0:43
  • Glad I could help! I posted my tip as an answer.
    – owlswipe
    Commented Jun 5, 2016 at 13:05

1 Answer 1


Power Nap, a feature of MacBooks that enables them to do more when they are asleep (like back up to iCloud/Time Capsule, check emails, and check iMessage) will allow your Mac to stop showing messages you've already read when you open your computer. Here is Apple's support guide on turning on Power Nap.

  • Oh no... After almost 2 weeks, the notifications are back..! I've verified that Power Nap is still enabled. Any other ideas?
    – BizzyBob
    Commented Jun 15, 2016 at 13:44
  • @BizzyBob That's unfortunate! Hmm. Do you have power nap turned on for both battery power and plugged-in states? Check in System Preferences -> Energy Saver under both the Battery and Power Adapter tabs.
    – owlswipe
    Commented Jun 15, 2016 at 20:18
  • Yes, it is enabled for both.
    – BizzyBob
    Commented Jun 17, 2016 at 5:41
  • @BizzyBob do you have Read Receipts off or on on your iPhone?
    – owlswipe
    Commented Jun 17, 2016 at 21:05
  • Read receipts are off. But that shouldn't really matter, would it?
    – BizzyBob
    Commented Jun 19, 2016 at 16:04

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