IOS13 Mail outlook.com duplicate sent items

This has bugged me with MacOS Mail for years, and with iOS13 Mail I now have the problem on the iphone (6s)

I have 4 email accoonts, one icloud account (no problems) and 3 Outlook.com accounts. All 3 now store duplicate sent items in the app.

They are not stored on the server sent folder, and only one copy is received by the recipient.

I have deleted the accounts and added back.

Thete is no setting on webmail to help me.

IOS 11 and 12 did not have this problem though MacOS have had it for years. Its no doubt a Microsoft glitch but only shows up in 13.

Any help, or others testing this would be appreciated.

iPhone 6s

Posted on Sep 21, 2019 10:10 AM

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Question marked as Top-ranking reply

Posted on Dec 10, 2019 10:38 AM

Wahoo we waited long enough...


  • Fixes issues in Mail that may prevent downloading new messages
  • Addresses an issue that prevented deleting messages in Gmail accounts
  • Resolves issues that could cause incorrect characters to display in messages and duplication of sent messages in Exchange accounts


my battery is 17% lol need to charge before it will allow me to update. Best of luck everyone is this a very merry Christmas from Apple?

301 replies

Nov 1, 2019 7:13 AM in response to LD150

Apple contacts did not transfer to my outlook app. But my outlook app has its own contact list.

very disappointed with Apple. Not only is the mail app glitchy, there are other apps that are having new glitches. I had my wife turn off auto update and stay on iOS 12 which continues to work fine. While it is possible to switch back, the lose of other data concerns me.

🤔🤔

Nov 4, 2019 3:13 AM in response to LD150

Since upgrading to IOS 13 sent messages duplicate on my ipad. Interestingly my iphone doesn’t have this problem, (yet!) although upgraded to 13.1.

I am really annoyed that Apple send out these untested updates & treat us as guinea pigs to discover their faults for them.

Apple will continue to lose ground to other manufacturers, unless they employ competent programmers! Perhaps Huawei have stolen all their competent staff???

APPLE STOP ALL FUTURE UPGRADES UNTIL YOU SORT OUT YOUR HISTORICAL MISTAKES!

Nov 13, 2019 12:17 AM in response to svkrzn

I don’t buy that it’s not an apple issue. Too much coincidence that problem has only arisen since upgrading to ios13. No issues with my gmail account on any device, just my outlook. Maybe everybody’s partially responsible but at least one somebody must have done at least one thing to mess up something that worked perfectly before. Come on guys, just get it sorted!!

Nov 13, 2019 11:17 AM in response to Sokuya

You said "Actually, it's turns out that the source of the duplication is in macOS. I notice that all the emails that I sent from my iPhone (iOS 11.4.1, has 'Sent from my iPhone' at the end) didn't duplicate. It only gets duplicate when sent from macOS mail app."


Interesting but completely irrelevant as this thread is about iOS13.

Yes in my original post I said that this had been happening in MacOS for years but now iOS13 inherited the same fault.

Nov 26, 2019 12:30 AM in response to MARK2620

I’m having the same issues and it’s driving me nuts. I understand Microsoft is working on this at the moment but what concerns me is if it gets worse and I can no longer get emails on my iPad and iPhone as normally that’s what I use daily and only access a desk top a few times a week. All bills etc come in via emails. I sometimes get a server error on m iPad for a few mins then all works again. Apple unable to help and I’ve been on chat and calls several times. I still think the 13.2.3 has added to the issues Microsoft and outlook is having.

Nov 26, 2019 12:35 AM in response to hakanfrombath

All of the above is the same for me. But I removed my account after update as it stopped working and there was a server error. Since then I could add my hotmail account using exchange as it was not there. Microsoft Exchange was there in settings but I could use that my email account would connect so I used outlook and that works. So iPhone in exchange and iPad on outlook. All syncing but the exact issues your having.

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IOS13 Mail outlook.com duplicate sent items

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