iOS 13 duplicate sent items for outlook.com Mailbox


iPhone users after updating their iPhone to latest iOS 13 and iOS 13.1.2  are facing issue with outlook.com mailbox that it is saving duplicate emails in sent box. Duplicate email id in sent box of iPhone was not a issue with iOS 11 or iOS 12 but it is faced in iOS 13 only. The other mailbox like icloud are working fine. It seems the issue only occurs in gmail for me when Google Sync (Exchange) is used to connect, IMAP is fine. But it’s the only outlook.com and hotmail, that is facing duplicate sent mail issue. Seems like this issue is specific to iPhone/ iOS 13 as the ipad is not seeing duplicate mail issue.  Deleting account and re-adding doesn’t help.

iOS 13 : duplicate sent item in mailbox outlook, hotmail


One iPhone users reported this issue as :
“Having this same issue - all of a sudden with iOS 13.1 (on an iPhone 8), the Mail app shows duplicate copies of sent emails from my Outlook 365 account of emails sent via the phone. Emails sent from the account via PC only has one copy. Does not occur in the Gmail account I have though.”

Mail app on iPhone with Outlook iOS 13 sends messages twice. Even on the latest iOS 13.1 same issue is reported. Even seeing this with corporate mail and iPhone XS/XR/8+ and older phones running v 13 and 13.1. It is interesting to note that  sent mail appears twice in my sent items but recipient only gets once due to this the calendar is having issues syncing too. But it is interesting to note that while trying to open the first mail in sent box the secone will go away.

Why I am seeing duplicate sent mail in iPhone X with iOS 13 :


After investigation it appears that the first copy seems to be local then the server copy appears. (when checked on server, server had only one sent item). Now view the later server copy and the earlier local copy disappears.

How to fix iPhone XS showing duplicate sent mail after iOS 13.1.2 update


Fix 1: Turn of push notification

There is workaround  to turn off duplicate sent mail in the latest iOS 13. Go to Settings > Accounts & Passwords > Fetch New Data > chose your Outlook account > remove the Push from the Sent mailbox.


Fix 2: Submit bug report to Apple

Clearly this is a bug at Apple side that needs to be fixed ASAP. We request you to submit a bug report regarding this at apple.com/feedback

Comments

Unknown said…
Hi Thakur, I have the new iphone 11 pro with os version 13.1.2. I have the similar issue of duplicate sent items of my o365 mailbox. I have tried to remove the push settings only for sent items as suggested. but the same gets re-enabled once i leave the settings page. Do you have any suggestions please. I have already submitted a bug report in apple website.
Anonymous said…
I experienced prior to updating iOS 13.2.3