Outlook topics

Shared Outlook Calendar disappeared

SalsaCycle — Tue, 16 Jun 2026 19:32:04 GMT

An Outlook Calendar that my wife and I share has suddenly disappeared from my Outlook Calendar. It still shows on my wife's computer.

We set this up a number of years ago, so I have no idea where or how to troubleshoot this. I do recall that we had to each create outlook.com email addresses so that we could access Microsoft Exchange.

We are using the Classic version of Outlook. In case it's useful, here's the exact information from the Outlook About page: "Microsoft® Outlook® for Microsoft 365 MSO (Version 2605 Build 16.0.20026.20168) 64-bit."

Thanks to anyone who can help me solve this problem.

Outlook.com shared calendar disappeared for one user

djh361 — Tue, 16 Jun 2026 12:52:46 GMT

I have a personal Microsoft account with a Live.com address. For over 10 years, I have had a calendar that is shared with my wife and daughter. It was created when Microsoft introduced the Family Room feature, which created a shared OneNote and shared calendar. While the Family Room feature was discontinued, the shared OneNote and shared calendar have continued to work without problem until today. The shared calendar has disappeared from my daughter's Outlook on Windows, Web and Android. My wife still has access to the shared calendar.

I have tried removing her shared access permission and then adding it again. She receives the invitation to accept the access and clicks Accept. The shared calendar reappears in her Outlook calendars with all events shown, but after a few seconds, the calendar disappears. I have not found any useful information about this problem online. All the articles I can find relating to problems with shared calendars relate to Outlook for Microsoft 365 and not the consumer Outlook.com.

If anyone can help resolve this problem, it would be greatly appreciated.

New Outlook Offline Mode: Add and open attachments while offline

Teresa_Cyrus — Mon, 15 Jun 2026 18:25:39 GMT

Microsoft has been rolling out offline functionality in phases, and the latest update now allows users to add and open attachments while offline.

I created a short walkthrough covering what works offline now, what users need to know about attaching files from OneDrive versus local drives, and which features still require an internet connection.

I also shared my discoveries when creating a calendar event that you don't want to miss.

Video: https://www.youtube.com/watch?v=SYsraZBTack

traccreations4e-p26 6/15/2026

Outlook doesn't work for 4th IMAP email addy

Smurphette — Mon, 15 Jun 2026 17:36:43 GMT

Okay, so the title was probably badly worded. Ever since the new outlook, my 4th IMAP email address doesn't work - and it worked in the old outlook. I have 4 IMAPs and 2 gmails I check through Outlook, on two different computers. One is a brand new setup. The email address I am having problems with works fine with the exact same settings on my mobile app (not outlook) and it works fine if I add it to gmail. So it's definitely an outlook problem. Both computers keep redirecting me to sign in, as if it were a wrong password. It isn't. I've tried adding it the prompted way, and by clicking settings and signing in or managing it through there.

I need other ideas. I can't seem to fix this.

Feature Request: Add "Recent Activity Feed" combining Sent & Received emails

kpawan435 — Wed, 10 Jun 2026 11:41:14 GMT

Respected Outlook Product Team,

I am writing to submit a feature request aimed at improving productivity and message tracking for power users who heavily rely on Microsoft Outlook for their daily communication workflows.

The Problem:

Currently, Outlook separates communication into distinct folders: "Inbox" for incoming mail and "Sent Items" for outgoing mail. When managing large-scale communications—specifically when sending bulk or recurring emails via BCC (Blind Carbon Copy)—it becomes incredibly tedious to constantly switch back and forth between the Inbox and Sent Items folders to track recent operations or verify the exact sequence of historical activities. The existing "Group messages by conversation" feature also fails to merge these independent outgoing streams seamlessly unless a direct reply is received.

The Solution / Feature Proposal:

I highly request the product team to introduce a "Recent Activity Feed" filter or view within the main Outlook Inbox interface.

Inspired by modern social media and collaboration timeline feeds, this feature should display both Sent and Received emails chronologically in a single unified message list.

Incoming and outgoing messages should be clearly distinguishable using intuitive icons (e.g., incoming/outgoing arrows) and labels (e.g., "SENT (BCC)" vs "RECEIVED").

This will allow professionals to review all recent actions, sent bulk updates, and incoming threads at a single glance without breaking their operational focus.

I have attached a UI/UX Concept Design image with this email to visually demonstrate how this feature would streamline the user experience seamlessly.

I sincerely hope the engineering and product management teams will consider this feature in future Microsoft Outlook updates to adapt the platform to modern, high-volume workflow requirements.

Thank you for your time and continuous efforts to improve Microsoft Outlook.

Regards,

Pawan Kumar

New Outlook problem with missing new mail in conversation

jakub1 — Tue, 09 Jun 2026 09:11:24 GMT

Hello. In new Outlook (in browser) is problem, when comes new email like a answer for multi thread, newest email are not showed automatically, i need to refresh outlook in browser and after that is showed. Why is this problem? Is possible to setup this automatically?

Outlook 16.109.3 crashes on launch on macOS 26 (Tahoe beta) - UTI Info.plist regression

tomflow15 — Mon, 08 Jun 2026 20:55:40 GMT

Environment:

macOS 26.5.1 Build 25F80 (Tahoe beta)
- Microsoft Outlook 16.109.3 (build 26053122)
- MacBook Air Mac14,2 arm64, 16GB

Issue:

Outlook crashes immediately on every launch. Occurs on clean install with no profile. Tested two builds (26053122 and 26051019) - both crash identically.

Root cause from system logs:

macOS 26 has tightened UniformTypeIdentifiers enforcement. Outlook's Info.plist is missing explicit declarations for 12+ com.microsoft UTI types. On every launch:

"UniformTypeIdentifiers: Type 'com.microsoft.DataObject' was expected to be declared and exported in the Info.plist of Microsoft Outlook.app, but it was not found."

Same error fires for: com.microsoft.Embedded-Object, EMF-Plus, GIF-Office-Art, Ink-Serialized-Format, JFIF-Office-Art, Link-Source-Descriptor, Object-Descriptor, Embed-Source, PNG-Office-Art, Office-Drawing-Drag-Drop-Format, Office-Drawing-Shape-Format.

Secondary error: /private/var/db/DetachedSignatures does not exist on macOS 26, causing an SQLite open failure in libsqlite3.

Workaround: None. Outlook Web only until a fix ships.

Ask: Please update Outlook's Info.plist to explicitly declare all com.microsoft UTI types to comply with macOS 26's stricter enforcement. This will affect all Microsoft 365 Mac apps when macOS 26 ships publicly this fall.

Log in into outlook with hotmail account

TonyR2 — Mon, 08 Jun 2026 19:28:36 GMT

I have my primary account on hotmail.com

Trying to log in via apps. Works. Trying to log in via web it claims password is incorrect or was used too many times and always asks for alternative method.

Did MS phased out passwords?

New desktop outlook do not show incoming message in conversation

jakub1 — Fri, 05 Jun 2026 12:35:41 GMT

Hello. I would like to ask you about solution for this problem in new Outlook.

I send message and i got reply for this message. This message i see as conversation in Inbox. When i collapse this conversation, i see only my original message, not reply message. But reply message I see only in header in list of mail, i can't open this message. Where can be problem? Thx

IMAP connection error INVALIDCREDENTIALS

MVdM — Thu, 04 Jun 2026 10:44:52 GMT

I am trying to add my external IMAP mailbox from my hosting provider (Easyhost.be) to the new Outlook app / Outlook.com.

However, when I try to add this mailbox to my domain 'vinedo.be', I immediately receive the error message: INVALIDCREDENTIALS INTERACTIONREQUIRED.

In the classic Outlook desktop app, the account works immediately via IMAP with exactly the same password. Everything also works perfectly with the Outlook app on an Android smartphone.

There appears to be an incorrect tenant attribution or cache in the background of the Microsoft Cloud that is internally blocking authentication for the domain vinedo.be.

Could you clear the cache/tenant attribution for the domain vinedo.be so that the IMAP connection is routed externally again?

The mailbox email address removed for privacy reasons was hosted by Gandi.net until recently. This is presumably causing the problem.

Problem adding IMAP email account to Outlook on Android

SoapySoaps — Wed, 03 Jun 2026 21:43:58 GMT

I am trying to add a couple of IMAP email accounts to Outlook on Android. Both are for my own domain, and I already have both added to Outlook on my windows laptop without any issues.

One of the emails, "name@ domain . com" is added without any problems on Android, but my catch-all email, "*@ domain . com" will not add, and constantly gives the "check email/password" error. This email works with Outlook on my windows PC, and with other email apps on Android.

I suspect the problem is due to the *@ domain address, but my email provider says it should work with Outlook, and it already works on Windows Outlook. Has anyone seen this before?

Stephen.

New Outlook for Macintosh Calendar Crashing

dnberry — Wed, 03 Jun 2026 18:32:32 GMT

I've received word from no less than a dozen of my clients that they are getting crashes similar to the following whenever they start to view calendars (either their own or other shared calendars):

Error Signature: Exception: EXC_CRASH (SIGTRAP) ExceptionEnumString: 50331648
Exception Code: 0x00000001 (0x0000000000000000) Date/Time: 2026-06-02 17:52:42
+0000 Application Name: Microsoft Outlook Application Bundle ID:
com.microsoft.Outlook Application Signature: OPIM Application Bitness: x64 Application
Version: 16.109.3.26053122 Crashed Module Name: merp Crashed Module Version:
16.109.26053122 Crashed Module Offset: 0x0000000000004928 Blame Module Name:
OlkCalendarUIKit Blame Module Version: 16.109.26053122 UnsymbolicatedChecksum:
90784EBBB8F0F0756139A717DBDA8150 Blame Module Offset: 0x000000000003aff0
StackHash: df444cd1c97e732e_50331648_main_phx Application LCID: 1033 Extra app
info: Reg=en Loc=0x0409 Build Type: Release Crashed thread Stack Pointer:
0x_000000016dc5cb70 Crashed thread: 0

MacOS is up to date, and this all appears to have started after Office for Mac was updated on or after May 26's update.

We've tried resetting their profiles to no avail. Does anyone have any recommendations?

Unable to sync my iPhone to my Outlook 2019 anymore

dldorger — Wed, 03 Jun 2026 17:13:29 GMT

I can’t sync my Outlook 2019 calendar and contacts to my iPhone on my Lenovo Windows 11 Computer anymore. For years I have been using iTunes to sync my phone but recently, for some unknown reason, iTunes quit recognizing my computer and all attempts to reauthorize it failed. My research into this situation told me that Apple is phasing out iTunes in favor of Apple Devices and Apple Music. Apple Devices does not sync my Contacts or Calendar. Also, for some reason my Outlook Data files are .OST files instead of .PST. I don’t know why this is because I am not on an Exchange and my Office 2019 is a stand-alone. The .OST format seems to be causing problems with any solution I have been able to find. Even iCloud cant sync them.

Can anybody help me get my iPhone to sync my calendar and contacts because I use it all the time?

What is the best way to conduct surveys through Outlook?

NorahFromHR — Tue, 02 Jun 2026 20:48:49 GMT

We want our employees to receive regular employee engagement surveys through Outlook. What would be the best way to set up this automation? We would also like to build these surveys in a detailed manner with enps and rating questions, and would like to be able to analyze results in detail. Any recommendations?

New Outlook - Using two Mails with slightly different domain

David_WBKL — Tue, 02 Jun 2026 07:22:21 GMT

Hey everyone,
As Old Outlook is connected with an additional app for one of my clients, I thought I could use New Outlook as my new operation centre for my various mail addresses.
Now the issue: my main business-address - also used for MS365 and Microsoft Entra ID and connected to my MS Account: "david [@] wb. koenig-leiche . at" and my main personal address which has its own web-mail "david@ koenig-leiche . at" are not possible to be added together.

When I try to add the second address I receive the following error: "This email account has already been added."

{"SessionId":"fc71f35e-f5d2-774c-8e5e-dd65b2b97a05","Timestamp":1780341019095,"Error":"INVALIDCREDENTIALS CANCEL"}

Has someone an idea how to solve this?

Thanks!

Signature - Table Borders Showing

riteoak — Sun, 31 May 2026 22:24:55 GMT

My work colleagues have outlook signatures. They use tables and the borders in their tables don't show.

I created my signature in Microsoft word and made mine look very similar and made the borders transparent.

I used these settings to make the border of the tables transparent:

I pasted it into the signature in Outlook, but the borders show.

The editor in Outlook does not give the option to remove the borders.

What do I do?

King's birthday...

DuncanMcC-NZ — Sun, 31 May 2026 00:08:55 GMT

But no, Outlook's spent the last couple years, including this one, displaying Queen's birthday weekend.

When Microsoft? When?

And whilst we're on renaming... what about changing the name of your OS from Windows 11 to Please Wait. It's way more accurate!

You’ve tried to sign in too many attempts with incorrect password or account .

Kirst25 — Sat, 30 May 2026 05:11:24 GMT

For 3 weeks now every time I try to sign in I get that message but account and password is correct, I have reached out to chat support every day for a fix have even done all trouble shooting steps multiple times a week.

I recently got told that it is a known issue with the server and it is at Microsoft ends but there is no time line to fix it. It’s know become a joke that I’ve been locked out for 3 weeks with no help .

Outlook 365 - Lost Features in older Outlook versions

SCrosby52 — Fri, 29 May 2026 13:09:51 GMT

Outlook 365 is the biggest bag of bugs that I have ever seen in any product released for sale to the Public. Whoever wrote it should be fired.

Outlook 365 has lost features that old versions of Outlook used to do routinely.

I created about a dozen .pst files to categorize and store my emails.

When I try to move an email from the Inbox to a storage location, it may not even let me move it.

When it does allow it to be moved,, the email then re-appears in the Inbox.

The .pst files cannot be moved to be arranged in my preferred order. Old versions of Outlook did that just fine.

When I was doing programming, I would have been embarrassed to give something so anti-user-friendly to my users. We used to call something this bad "the abortion that lived".

New Outlook autocompletes an address that is no longer in use and I can't seem to delete it

SP_User — Thu, 28 May 2026 21:13:11 GMT

Topic says it all, really.

Client of mine has a new company and when I type the start of his name Outlook autocompletes for his old company even though it is no longer in my address book and his contact is updated with new information.

I seem to recall there used to be an "x" that would let me delete incorrect autocompletes, but I can't find anything and Copilot has no useful suggestions.

The autocomplete comes up in both the web version of Outlook--I basically never use this--on my PC which I primarily use, and IOS.