Shared Calendars No Longer Visible
For years, I've shared Outlook calendars between my Outlook accounts and with my husband's, without any issues. However, since mid-June the shared calendars have disappeared for no apparent reason. The sharing permissions are still in place, but the calendars are no longer visible or available to add on Android, in the Outlook desktop app, or on Outlook on the web. I've spent hours Googling and tried all the usual troubleshooting steps, but nothing has worked! As a workaround, I now have to invite all @outlook.com accounts to calendar events just so everyone can see them and avoid double bookings. Has anyone come across this before and found a fix that isn't one of the standard "how-to" suggestions? Note: these are personal paid Microsoft accounts.
Teams Meeting Add-in Not Appearing in Outlook
The computer was rebuilt from scratch and reinstalled with a clean operating system. After the installation, all required Microsoft applications (Outlook, Teams, etc.) were installed and the user successfully signed in. However, the Teams Meeting add-in is not appearing in Outlook as expected. Within the Outlook Calendar/Appointment window, only the Skype Meeting option is visible, while the Teams Meeting option is completely missing. Checks Performed: New Microsoft Teams is installed and functioning properly. Outlook and Teams are both signed in with the user account. Outlook COM Add-ins have been checked. Disabled Items have been checked. Teams Meeting Add-in for Microsoft Office has been verified. Outlook updates have been checked. Microsoft Teams has been reinstalled. Outlook profile has been verified. Exchange mailbox is active and functioning correctly. Despite all the above checks, the Teams Meeting option is still not displayed in the Outlook Calendar/Appointment window, and only the Skype Meeting integration is available. Expected Behavior: The Teams Meeting button should be available within the Outlook Calendar/Appointment window, allowing users to create Teams meetings and automatically generate Teams meeting invitations. Request: Please why the Teams Meeting Add-in is not being loaded into Outlook and provide assistance in restoring the Teams Meeting functionality within the Outlook Calendar/Appointment interface. Attachments: Screenshot showing the current issue (Teams Meeting button missing) Screenshot showing the expected behavior (Teams Meeting button visible)
Is a COM add-in the only way to add an add-in to a Gmail/IMAP account in classic Outlook?
I have an Outlook web add-in (Office.js, MailApp) that works fine on Exchange Online mailboxes. But on a Gmail account added to classic Outlook for Windows via IMAP, the add-in never activates, as I understand it, web add-ins need an Exchange backend to activate against, which an IMAP account doesn't have. Is that correct? And if so, is a traditional COM add-in (VSTO) the only supported way to surface an add-in on these IMAP/POP mailboxes in classic Outlook, or is there a web-add-in path I'm missing?
My Outlook for Mac HTML email reply quoted body blank, only headers show
I've been using Legacy Outlook for Mac for years without issues, but since Wednesday afternoon (June 17, CET) something broke after the latest update rolled out. When I reply to any HTML email, the quoted original message is completely blank. Only the From, Date, To and Subject headers show up — the actual email body is gone. It makes it impossible to have a proper email thread because the recipient can't see the conversation history. This started right after Version 16.110 (Build 26061317) was released on June 16, 2026. The release notes only mention "Quality and performance improvements" for Outlook, so whatever changed in this build seems to have broken HTML reply quoting as an unintended side effect. My setup: MacBook Air M5, macOS (Legacy Outlook for Mac Exchange on-premises account (EWS), domain login What I'm experiencing: Replying in HTML mode → quoted body is completely blank, only headers show Switching to plain text → body comes back but with massive blank line gaps throughout (not professional to send) Outlook Web (OWA) → works perfectly fine What I've already tried: Cleared app data (Document Cache + Experimental Features) — no fix Cleared Outlook cache manually — no fix Toggled composing settings — no fix Checked settings in Preferences → Email → Composing — everything looks correct I've also tested Apple Mail as an alternative but it breaks embedded signature images (CID images show as placeholders), and it doesn't support Teams meeting integration — so going back to Legacy Outlook is really the only option for my daily work. Outlook Web App OWA is my current workaround but it's not sustainable long term. I really hope this can be looked at as a regression fix in the next update. Has anyone else experienced this since the June 16 build? Does anyone has this issue as well?
Shared Outlook Calendar disappeared
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 delegated inbox
We have 10 users all have newer Dell windows 16gb 256gb at least laptops all users use classic outlook at the moment. they all use two monitors with the laptop They are all currently in three inboxes one inbox for order inquires, one inbox for orders which is delegated and the one we have issues with and there personal inbox. They like to use a inbox as a work queue users find the email they want to work on forward it to there personal email and move the email out of the queue inbox. While using the queue inbox as an archive. Everyone has cache turned off nothing is downloaded locally for the shared inbox. We originally had each user on the team sign into the inbox with the same credentials not best practice but this team started with two people and quickly grew. We now have users delegated to the inbox we run into several issues. The outlook drags with everyone in the inbox The outlook does not keep kept up say someone deletes an email someone sitting right next to that person would still see the deleted email in the shared inbox. Causing duplicated works Delegated inbox moves deleted items to users personal inbox same with sent items. Analytics and reporting and archiving is a whole other issue but not what I am honestly looking for help with. MSP wants to get users on a mail handler but the team does not want to have another tab open even when an extra monitor was offered. They also do not like the idea of going back in forth between two different inbox systems. " we basically will have two outlooks" Team wants something light weight even asked if there was some sort of extension for outlook. Storage wise it has a 50gb storage with an online archive archiving takes place every 3 months. the storage stays at 60-80% if it hits 90% or over the inbox is almost not functional. We thought storage and usability corelated but today we had issues at 70% continually. I know i sound green please be as brutal as needed my pride is less important than this issue. In the off chance someone has been in a similar issue would appreciate any insight on how they navigated it and really wanting to learn.Outlook Android “Sync Contacts” disabled for Microsoft 365 Business Standard tenant
I am the Microsoft 365 tenant administrator. Outlook and Authenticator work correctly on Android. The “Sync Contacts” toggle inside Outlook is disabled/greyed out. Native Exchange setup hangs on “Retrieving account information”. No Intune license available (Business Standard tenant). How can I enable Outlook contact synchronization with Android Contacts?Forgotten email password request being seen coming from a different email account
When at http://account.microsoft.com/ to reset a forgotten password for a Microsoft Exchange account with a registered domain email account the code being sent is being seen as a forgotten password reset request for my http://hotmail.com/ email address. Why is that and how can I have my forgotten password request be seen coming from my domain email account?
Exchange Online: Sudden mass quarantine of legitimate emails (tenant‑wide impact)
Hello, Since last Thursday , we have been experiencing a sudden and significant increase in quarantined emails across our Exchange Online tenant. Key observations: - Hundreds of legitimate emails are being quarantined every day - The issue appears tenant‑wide and affects multiple senders and recipients - No recent configuration changes were made (Exchange mail flow rules, Defender for Office 365 policies, or security presets) - Messages are being classified as spam/phish even though they are clearly legitimate - Manual release is currently required, which is operationally unsustainable and error‑prone - Business‑critical communications are being delayed or missed as a result We have an active Microsoft support case open, but the root cause is still unclear. I would like to ask the community: - Are other Exchange Online tenants seeing a similar spike in quarantined legitimate emails since last week? - Has Microsoft acknowledged any backend or filtering model changes or service issues related to quarantine or Defender for Office 365? Any confirmation or shared experiences would be greatly appreciated, as we are trying to determine whether this is an isolated tenant issue or a broader service‑related problem. Thank you.
