Hi everyone,

We’re troubleshooting Outlook issues affecting multiple employees. Our main problem is with Classic Outlook, and New Outlook is also having attachment issues.

Classic Outlook

• Text-only emails send successfully.
• Emails with attachments remain in the Outbox and are not sent.

New Outlook for Windows

• Attaching a file intermittently fails, even with small files.
• Error: “The following files couldn't be attached: [filename]. Please try again later.”
• Sending and receiving emails without attachments generally works.

What we’ve checked

• The same files attach successfully in Outlook on the web.
• Switching between corporate and external Wi-Fi makes no difference.
• Repairing/resetting New Outlook and clearing its app data did not resolve it.
• A factory-reset PC without corporate security software works, although other differences between PCs have not yet been ruled out.
• Some users work normally while others fail, even with exactly the same versions:
  • Outlook: 1.2026.1001.200
  • Client: 20261002003.17
  • WebView2: 155.0.4283.45

Our DLP vendor reports no known update-related issue, but we haven’t confirmed or ruled out a security software interaction.

For context, we use two company email domains: one provided by HQ and one purchased by the regional office. This does not necessarily mean they share the same mail infrastructure; we’re still separating the findings by account/domain.

Colleagues in other offices have reported similar problems around October 14. We’re contacting Microsoft support and using web Outlook as a temporary workaround.

Has anyone recently experienced this combination of symptoms? If you found the cause, which diagnostic logs or specific component helped identify it?

Thanks!

Microsoft's web page about Office for Mac updates says I need Sonoma. I already have Sonoma (14.8.7). When I'm in an Office app and I go to: Help, Check for Updates, and display the list, it says everything is already updated!! So why do I get the following message whenever I open Word, Excel, etc.: "Office Update: Your operating system needs to be updated to receive Office for Mac Updates"??? This just started happening today. (I use Word and Excel every day.)

These are my versions:

• Microsoft AutoUpdate 4.85
• Microsoft Excel 16.114
• Microsoft OneNote 16.114
• Microsoft Outlook 16.114
• Microsoft PowerPoint 16.114
• Microsoft Word 16.114
• OneDrive 26173.0906

Throughout my career, I worked on several geographically dispersed teams spread across multiple continents. A recurring pattern I ran into was that regular team syncs almost always favored one primary office or time zone. As a result, the exact same folks in APAC or EMEA ended up taking calls at 6 AM or 11 PM week after week.
Microsoft’s workplace research highlights that after-hours meetings have steadily climbed, and meeting fatigue is a massive drain on team morale when the inconvenience falls entirely on one group.
To try to solve this, I built Global Meeting Scheduler, a lightweight Outlook add-in. Instead of keeping a recurring meeting pinned to one static time slot, it automatically rotates the meeting time across scheduled intervals. The goal is simple: share the time-zone burden fairly across the entire group rather than penalizing the same region every time.
I recently launched an open beta and would genuinely appreciate feedback from anyone managing or working within multi-region teams.
You can check it out or test the beta here: https://tzplanner-outlookaddin.mjfnet.com/
Curious how other distributed teams currently handle this—do you manually shift slots, rely strictly on async updates, or stick to a single compromise time?

Hello everyone,

I'm working in IT Support in a corporate environment, and we're experiencing recurring Excel saving issues affecting multiple users.

Environment:

Microsoft Excel: Excel 2016 (desktop application).

File storage: Shared folders and files accessed through SharePoint or OneDrive.

Scope: Multiple users are affected intermittently. The issue does not occur for everyone at the same time.

Problem description:

When users open and edit Excel workbooks stored in shared locations, Excel displays the following warning:

"UPLOAD FAILED – You need to sign in to upload your changes to this location."

A Microsoft sign-in window also appears with messages such as:

"We couldn't find an account with that email address or phone number."

"There was a network problem. Please try again later."

These errors prevent users from reliably saving their changes to the original shared files.

We've noticed that these incidents have become increasingly frequent, resulting in more IT support tickets related to Excel saving problems.

Questions:

What could cause these recurring upload and authentication errors in Excel 2016 when working with SharePoint or OneDrive?

Could this be related to cached credentials, Office authentication, OneDrive synchronization, or Microsoft 365 configuration?

Since multiple users are affected intermittently, could this indicate an issue with the shared environment rather than individual computers?

What troubleshooting steps would you recommend to identify the root cause?

Are there any known compatibility issues between Excel 2016 and modern SharePoint/OneDrive authentication mechanisms that could explain this behavior?

We want to identify the root cause rather than repeatedly applying workarounds to individual computers.

Thank you for your help.

I'm trying to log into Microsoft Teams for an upcoming job interview.

It goes something like this:

• put my email in, it says "we couldn't find an account with that username", prompts me to make a new account

• it says "looks like you have an account" and that it's a recovery method for an existing account

• it says to "recover username", then says "no account matches the info you provided"

Rinse and repeat.

What's the best option here, start fresh with a new email?

I’m trying to share a Word document with teammates in the View Only setting. I’ll send it, then it somehow changes to allow Editing access. When I see who has access, it’ll say “Editing” next to their name. But when I click on the link permissions for that specific link, it’ll say “view only” next to their name. However, they can edit the document.

I’ve deleted all shared links, triple checked I’ve selected View Only, etc. and nothing seems to be working.

Is this a glitch or is there something I’m missing?

Adding users to multiple Teams and channels can be a tedious task, so I decided to simplify it.

With my new app, you can:

• Sign in to your tenant
• Retrieve your Teams and channels
• Build a reusable list
• Add a user to the selected Teams and channels
• Edit and save the configuration as a JSON file for future use

Simple, reusable, and designed to make Teams administration easier.

mthorngaard/teams-membership-manager: Local web app for adding a Microsoft 365 user to a maintained list of Teams and channels.

What fucking genius decided to put a bar on the editor that hides the text you are typing behind it? Please Microsoft FIRE your developers and REPLACE THEM with Claude.

I'm trying to help a customer migrate about 80GB of data from one SharePoint site to another (well to a Microsoft Team, but same difference i suppose).

The catch is, we need to preserve file metadata, dates created etc.

I've used SPMT from network shares TO a sharepoint site, but it doesn't seem to offer site to site functionality. Everything I've googled seems to be inconclusive.

Anything out there that makes this simple?

Thanks

Hello everyone,

Before I begin, I just wanted to clarify that I’m an intern and that many decisions are beyond my control and/or were made before I arrived.

Since support for the classic version of Outlook may end in 2029, everyone in the company has been required to use the “new Outlook” since this summer. That’s probably a good thing.

However, the accounting department called me this morning because they were unable to send or receive the merge and mail merge test for their Word mail merge, which they need to send out by the end of the week.

After checking some forums, I found that one of the main issues was incompatibility with the new Outlook. However, most of these posts date back to 2024.

So I was wondering if Microsoft plans to take any steps to enable mail merges with the new Outlook.

Sorry for any typos or if some sentences makes no sense.

My Microsoft got deleted and it says I already have an account and yet when I try to log in it says I dont have one PLEASE HELP ME

Hi, Im trying to download a separate installer for MS Project and Visio (we install machines with just baseline M365 Office without Project or Visio and when users get a license, we install it separately.

For the past week, Ive had troubles with the portal to download the installers. I normally go through portal.office.com, then use the app menu to show more apps, the top right option to Install apps and "Microsoft 365 apps". This redirects me to url https://portal.office.com/account/?ref=Harmony#installs

The problem is, the website is currently not loading properly and so I cannot download the installers. Ive tried cleaning cache, deleting cookies, we tried from multiple users with multiple devices (using Edge, we do have some Conditional Access and Intune Configs in place, but nothing has changed since the time this worked fine), no luck.

This is what the website looks like (in Czech). Any ideas?