Outlook’s New Summarize Option for Email Attachments

Summarize Attachment in Outlook

Among the blizzard of Copilot changes is one where Outlook can summarize attachments. That sounds small, but the feature is pretty useful if you receive lots of messages with “classic” (file) attachments. Being able to see a quick summary of long documents is a real time saver, and it’s an example of a small change that helps users exploit AI. Naturally, it doesn’t work with Outlook classic.

How to Block PST Files for the New Outlook for Windows

Block PST access for the new Outlook for Windows

An OWA mailbox setting is available to block PST access for the new Outlook for Windows client. The setting mimics controls available for Outlook classic, where companies have been blocking PST access for a long time. Once email is in a PST, it’s invisible to any of the compliance solutions that organizations pay for. It’s also invisible to Copilot, which might not be a bad thing…

New Outlook and OWA Control for Viewing Protected Email

Two-click confirmation for Outlook to read protected email

The new TwoClickMailPreviewEnabled setting in the Exchange organization configuration controls if OWA and the new Outlook for Windows use two-click confirmation to open protected email. The new feature could be useful for people who commonly open confidential and protected email in situations where someone else could see what they’re reading. In other situations, it will irritate people.

Use an OWA Mailbox Policy to Block Attachment Download for the New Outlook for Windows

Use a OWA Mailbox policy to stop the new Outlook downloading attachments

The ConditionalAccessPolicy setting in an OWA mailbox policy can be configured to work with Entra ID conditional access so that OWA blocks access to attachments on unmanaged devices. Microsoft originally introduced the feature in 2018 and as it turns out, the combination of OWA mailbox policy and CA policy also blocks attachment access for the new Outlook for Windows client.

Microsoft Retires Exchange Server OWA Access to Online Archives

Online archives and Exchange Server OWA

Microsoft’s April 17 announcement that OWA in Exchange Server will not support access to online archives after May 12, 2025, surprised quite a few people. However, the decision is entirely logical and is driven by falling mailbox numbers on-premises and the need to match engineering and support costs with revenue. Outlook classic continues to support access to online archives. Maybe Outlook will be the Exchange on-premises client for the future.

The New Outlook Gains Colored Folder Icons

Outlook colored folder icons

Colored folder icons does not seem like a new feature that should appear in an email client that’s been around for a long time, but the new Outlook for Windows and OWA now both offer users the ability to choose different colors for folder icons. Apparently, this is an important step forward in the development of the new Outlook and might just be the killer feature to convince the curmudgeons who use Outlook classic to switch.

How to Create and Send an Outlook Newsletter

Outlook newsletters

Outlook Newsletters is an app for the new Outlook and OWA that allows users to create and send good-looking newsletters to internal recipients. It’s an easy-to-use app created using components drawn from across the Microsoft 365 software toolbox that will be of interest to anyone who needs to send internal newsletters on a regular basis.

The Extremely Useful Meeting Follow Response

The Follow response is a new option for people invited to a meeting to indicate that they can’t attend but are interested in what happens. Replying with a Follow response means that the user gains access to the meeting artifacts (like the chat and recap). It also means that the allotted time is not blocked in their calendar. The feature will be most valuable to people who have heavily-used calendars.

Declined Meetings Show Up in OWA and Monarch

A new setting in OWA options allows users to choose to preserve declined meetings. Keeping details of declined meetings can help users to find information included in meeting details of data created during meetings like chats and meeting summaries, or forward the meeting to someone else if needed.

Use Dictation to Compose Outlook Messages

Now available for OWA and the Monarch client, Outlook voice dictation allows users to compose the body text of messages with speech-to-text transcription. A limited set of languages are available for now, but more to come. Learning how to compose email with speech is an acquired art and might required some AI help to produce acceptable results.

Exchange Online Tenants can Postpone Roaming Signatures

A new Exchange Online organization setting postpones the implementation of roaming signatures for Outlook clients in a tenant. The setting only allows a postponement because Microsoft really wants all Outlook clients to use the signature data stored in user mailboxes. The extra time allows tenants that use PowerShell to manage OWA signatures to work as they did before roaming signatures came along and screwed things up.

OWA and Teams Share User Work Locations

Work locations are a new concept that OWA and Teams share in an attempt to make it easier for people to schedule meetings with knowledge of where participants are working from. It’s a nice idea but the implementation is sadly flawed because of a lack of flexibility in defining or customizing locations. Let’s hope Microsoft improves the feature in future.

How Exchange Online and Outlook use Machine Learning

Microsoft uses machine learning in Outlook and Exchange Online to create the basis for what they call intelligent technology like suggested replies and text prediction. To generate the language models used to figure out how Outlook should respond to users, Microsoft needs to copy data from user mailboxes for processing. The data is removed and the results stored in user mailboxes once processing is complete. Is this an issue for Microsoft 365 tenants? It all depends on your view of how data should be processed.

Microsoft 365 Profile Card Gains Support for User-Preferred Pronouns

Microsoft 365 pronouns for display in apps like Teams and OWA can now be enabled on a tenant-wide basis. Displaying pronouns is a topic that can cause strong feelings for some, so organizations should take their time and plan an implementation before rushing to deployment.

Microsoft’s Cloud Email Signatures Solve a Problem for Outlook

Microsoft says that the roaming (or cloud) email signatures feature is now fully deployed. The new approach solves an Outlook problem, but it’s not a universal panacea for the management of email signatures within large organizations where you want consistency in the signatures used by everyone. You’ll need an ISV solution to get that kind of functionality.

Microsoft Makes Outlook Monarch Client Available to Office Insiders

A new Outlook Monarch build is available for Office Insiders to test. Still a prettier version of OWA, Monarch is maturing, and this build is usable, especially if you prefer OWA rather than desktop Outlook. However, if you need offline working, you need to wait a little longer because that feature still isn’t there.

Loop Components Appear in OWA

Loop components are now supported in OWA. The implementation is reasonably close to that of Teams chat, but has some essential differences due to the nature of email. The current state of Loop components mean that they are highly suited for internal communication but not for collaboration outside an organization.

New Account Switcher Coming for Microsoft 365 Web Apps

In a March 4 update, Microsoft announced that Microsoft 365 web apps will get a new account switcher to allow users to run multiple signed-in sessions and switch between the accounts seamlessly. Not every Microsoft 365 web app supports the new feature, with Teams being a notable miss, but there’s enough there to make this a very useful feature.

The Strange Case of Outlook Desktop and Actionable Messages

Outlook desktop couldn’t display actionable messages generated by Teams and Yammer properly while OWA and Outlook mobile could. It’s a small issue in the context of Microsoft 365, but it irritated me. I fixed the problem but don’t know how except that the Actionable Messages Debugger for Outlook might have been involved. Another day in the life of a Microsoft 365 tenant administrator…

How to Enable Users to Receive Copies of Email They Send to Microsoft 365 Groups

It might seem like a small thing, but some users are upset when they don’t receive copies of their messages sent to Outlook Groups in their Inbox. A new setting allows users and administrators to control if they receive copies of messages from groups, but only when the user is a subscriber to groups (Follow in Inbox is turned on). In this article, we explore how to set the EchoGroupMessageBackToSubscribedSender control via OWA options and PowerShell, and how to sign up to be a group subscriber by yourself or with a little help from an Exchange administrator.

How to Manage Client Read Receipt Settings in OWA and Outlook for Windows

A reader request asked how to force users to send read receipts. This is a client-side feature so the settings involved differ from client to client. We explore how to control them in OWA and Outlook for Windows. A mixture of PowerShell and system registry settings help create a solution. We’re leaving figuring out how to manage other clients to our readers.

OWA Adds Full Support for Send from Proxy Address (Mailbox Aliases)

A recent update to OWA adds the option to allow users to choose which proxy addresses assigned to a mailbox they would like to send messages from. It’s a small change which completes the client support for the earlier server-side update to allow users to send using mailbox proxies, and it makes using proxy addresses more approachable and useful. OWA also includes a drop-down list in the compose message screen to allow users to select an address to send from, and makes sure that message headers are updated correctly so that messages go back to the right address.

How Microsoft Editor Can Make Your OWA Messages More Polite

A new Microsoft Editor feature aims to make OWA messages more polite through “tone detection.” Currently only available for U.S. English, Editor scans for impolite text and comes up with suggested replacement text. The results vary from very good to not so good, but this might be because it takes time for a learning model to accumulate enough information about a user’s writing style to be able to detect impolite text accurately. We’ll know over time.

Outlook Edge Extension Coming Soon – But is it Needed?

Outlook and OWA users will soon see a banner notification to recommend the installation of an Edge extension. The extension logs into the user account to peek into the mailbox, calendar, tasks, and contacts. Tenant administrators have until July 30 to decide if they will block the display of the banners. This can be done using the Office Cloud Policy Service or a Group Policy Object.

OWA’s New Calendar Board View Is a Version of Project Moca

Microsoft is rolling out a new calendar board view for OWA. The new board looks very similar to a Project Moca board, which isn’t surprising because it’s a customized Moca board tailored to focus on the calendar. There’s no news yet when Project Moca might exit its current preview status, but maybe the new view will help by convincing people about the worth of configurable boards.

Q&A: How to Send Email Using Proxy Addresses with Exchange Online

Exchange Online supports the ability to send email using any SMTP proxy address assigned to a mailbox. Following the announcement of the feature, users had many questions including what clients can be used. Here are some common questions and answers about the feature, including some PowerShell to report the set of proxy addresses assigned to user mailboxes.

One Outlook Brings OWA Components to Desktop Clients

Microsoft’s One Outlook program aims to rationalize the current client set. The Edge WebView2 component allows Outlook desktop to reuse OWA features, which is why Microsoft now distributes WebView2 with the Microsoft 365 apps for enterprise (desktop apps). We’re now seeing signs of reuse with an obvious example being the appearance of OWA’s room finder in Outlook for Windows.

Share to Teams Outlook Add-in Gets a Refresh

Microsoft has refreshed the Send to Teams option in Outlook for Windows, OWA, and Outlook for Mac. You might not notice the change, but it’s a little faster and works better. Software engineering changes like this happen all the time in the cloud to speed up performance and improve reliability. We keep an eye on stuff like this to make sure that we understand what’s happening across Microsoft 365. It’s just what we do…

Microsoft to Install Edge WebView2 Runtime on PCs with Microsoft 365 Apps for Enterprise

Microsoft will include the Edge WebView2 runtime with Microsoft 365 apps for enterprise version 2101 or later. This doesn’t mean they install Edge; it’s simply a software component to make it possible for Outlook desktop to run features developed for OWA. You can block the deployment if you like, but there’s really no good reason to do so.

SharePoint’s Cryptic Sharing Errors and Removing the Outlook Send Link Option

If you encounter an error when sharing a SharePoint file, you might see an error code like OSE204. What do these mainframe-like codes mean and why does SharePoint show them? Or more importantly, how did the sharing capability of a site change through administrator incompetence? And why is Microsoft removing the option to send a sharing link via Outlook (OWA)?

Revocation of Email Protected by Office 365 Message Encryption

Office 365 Message Encryption (OME) allows OWA users to revoke some messages after they are delivered to recipients. But if the message goes to Office 365 or Outlook.com, you can’t revoke it. And there’s the slight matter of needing an Office 365 E5 license too. Even so, it’s still nice to be able to revoke messages if they go to the wrong place.

Change to Outlook Groups Displays High Unread Counts

Outlook for Windows has supported Microsoft 365 Groups since 2015. The developers chose a seen/unseen model for Groups, but now Outlook has switched to a read/unread model, meaning that the unread counts for Groups can suddenly seem much higher than before. It’s a one-time change that aligns Outlook desktop with OWA and Outlook Mobile and there’s an easy way to set all unread items to be read. But you might want to tell people that this change is coming!

How to Configure OWA, Outlook Mac, and Outlook Mobile to Create Online Meetings by Default

Changes coming in May and June will allow organizations to make online meetings the norm when created by OWA or Outlook mobile clients. You can control the feature at the organization level and allow individual mailboxes to override the organization setting.

New Office 365 Themes Available

In a moment of levity to lift the current situation, we discuss the wide range of themes offered by Office 365 to users. People can choose from 49 different themes to customize the online apps. You can go crazy with something like Super Sparkle Happy, display your love of cats, or choose a simple color. Once chosen, you should see the same theme across all the Office online apps. Except Teams, which does its own thing.

Add Your Personal Calendar to OWA

You can now add your personal Outlook.com or Gmail calendars to your work OWA calendar. The integration allows for only one personal calendar, and OWA synchronizes events from the personal calendar to make sure that people don’t schedule work events when you have personal commitments. TeamSnap calendars are also supported (real-only), but this feature is likely to not be used outside the U.S.

How to Respond to Yammer Conversations from OWA

If you receive a notification about Yammer conversations in OWA, you might notice that you can now do all sorts of new things to interact with Yammer while remaining in OWA. It’s part of Microsoft’s effort to make Yammer more relevant and accessible to people who prefer to communicate through email. And the nice thing is that the approach works well.

Using the Immersive Reader in Teams and OWA

The Microsoft Immersive Reader exists to make messages more readable for those who need a little help. It’s built into Office apps like Teams and OWA. Most people don’t know this or don’t need to use the reader, but those who do need support to access and understand text will find the Immersive Reader very helpful.

OWA Supports Automatic Labeling for Microsoft 365 Sensitivity Labels

OWA now supports the automatic labeling of outbound messages with Office 365 Sensitivity Labels. The new feature uses Office 365 sensitive data types to detect content in messages that should be protected, and once detected, the message is stamped with a label before it passes through the Exchange Online transport service.

OWA Embraces Office 365 Sensitivity Labels

OWA now supports Office 365 Sensitivity Labels, which means that users can apply labels to mark and/or protect messages with encryption just like they can with Outlook. The update adds to the ways that sensitivity labels can be applied to Office 365 content, with the next step being to achieve the same support for the other online Office apps.

How to Configure and Use Outlook People Favorites

Outlook people favorites give Exchange Online users fast access to their most important email correspondents. OWA has the best implementation but the feature is also available in Outlook mobile. As usual, Outlook desktop lags. It’s a small feature that could turn out to be very important to some users. Office 365 is full of such examples.