[Unsolved] iOS 8 Exchange Emails read on other devices do not clear out from Lock Screen

You're very welcome. I'm happy to report the good news. Hopefully, Apple will release 8.2 in short order.

They fixed the lock screen issue AND the double notification issue? It is truly a season to give thanks.

Joe, thanks for giving us hope with this matter! It's a (fairly serious, if you ask me) regression from iOS7 that causes me unnecessary ache on a daily basis.

Can't tell you how glad I was to find a thread of people having the same trouble, and the hope that - no surprises here - it's an IOS 8 issue rather than a device-specific settings issue.

I don't actually have an iCloud email address. I use my Google Apps account as my iCloud login.

Okay, I've tried it with an iCloud email account, and the behavior seems to be exactly the same as what I experienced with my Exchange account. The lock screen notifications seem to update as soon as the Mail app updates. Sometimes this is right away, and sometimes it takes a bit. Marking an email as read or deleting it directly from the lock screen syncs across other devices.

In general, it seems like push email is always real-time when new messages arrive. But deleting messages or marking them as read doesn't seem to necessarily trigger a real-time push the other way every time. If it doesn't update a deleted message right away, it always will update it the next time a push event (like a new email) occurs. This behavior seems fairly universal and not just exhibited on Apple devices. But the good news is that the notifications on the lock screen now seem to be directly linked to the status in the Mail app, so we won't have messages erroneously staying in the lock screen until the phone is unlocked. From what I remember, this is the exact same behavior that we had with iOS 7 (minus the interactive options on the lock screen).

I'm surprised that Apple is asking you if this is fixed in 8.2. They certainly have access to iCloud and iOS 8.2! 🙂

Glad to hear that iOS 8.2 supposedly fixes this lockscreen bug! It's been driving me nuts since "upgrading" to iOS 8.

This issue doesn't just exist for Exchange accounts, it also exists for IMAP accounts. In IMAP, the Mail app and Notification Center appear to update fine for both new and read mail (as per the Fetch schedule), but the lockscreen is only updating for new messages, not for messages that were read or moved on other devices. In other words, the lockscreen doesn't reflect the same information as the Notification Center, so it's almost definitely just a lockscreen bug.

Also, for those asking about iCloud accounts, you should know that iCloud only pushes new mail. In iOS, it has never pushed the updated status of mail read, moved or flagged on other devices. http://support.apple.com/en-ca/HT203545 This has got to be one of the most annoying and silly issues with iCloud mail. For a company that brags about the seamless syncing and integration between devices, Apple sure seems stubborn about not changing this behaviour. It is the single biggest reason why I don't make iCloud my primary email account.

That's correct. The bug seems to be fixed for Exchange, IMAP, and iCloud. Since the status was updating properly in the Mail app, it's probably just the linking between the Mail app and the lock screen that was broken. Now that that link seems to be fixed, I would think anything that's correctly handled in the Mail app should also be handled correctly in the lock screen. That's been my experience so far.

The 8.1.2 update has not fixed the issue on either my iPhone or my iPad. Same exact behavior as before.

It's 8.2 that fixes the problem. It's not fixed in 8.1.2.