1. Teams problem TM173756 Analyzing the Teams Outage of 18 February 2019 February 21, 2019 12:06 pm- Microsoft Teams suffered its first major worldwide outage on 18 February 2019. Users reported a failure to connect because Teams couldn't authenticate them. The Post-Incident report for TM173756 revealed an issue with the Azure Key Vault. What's more interesting is that the issue affected users in multiple Office 365 datacenter regions, which is not good.
  2. Phishing: Your Document Has Been Completed February 20, 2019 12:43 pm- Phishing attacks through email happen all the time. A new relatively crude one arrived today. It's easy for the trained eye to detect phishing, but do your Office 365 admins know how to use the tools available in Exchange Online Protection to suppress malware, and do your users know the signs of bad email? In this case, it's an invitation to click to get to a PDF document to bring you to Some interesting things might happen afterwards, but I really don’t want to find out what occurs when I click the link.
  3. Office 365 Audit Log Search Office 365 Captures Audit Records for Teams Compliance Items February 19, 2019 2:40 pm- In one of those interesting (but possibly worthless) facts discovered about Office 365, we find that audit records are captured for Teams compliance records written into Exchange Online group mailboxes. The Search-UnifiedAuditLog cmdlet reveals details that we can interpret using some techniques explained in Chapter 21 of the Office 365 for IT Pros eBook.
  4. Office 365 for IT Pros Office 365 for IT Pros February 2019 Update Released February 18, 2019 1:59 pm- Update #11 for the Office 365 for IT Pros eBook is now available. Subscribers can download updated files from Gumroad or Amazon Kindle (depending on which version you bought) and benefit from the 16 updated chapters. ePublishing is the only way to keep up with the volume of changes in Office 365, and Office 365 for IT Pros is the only book that keeps up. But you know that anyway because you're reading this site!
  5. Who Will Lead Your Office 365 Deployment? February 17, 2019 8:46 pm- A recent article set out the case that the technical lead for Office 365 deployments is best found in the ranks of people experienced with Exchange.The uphot was a flurry of tweets where people who worked with SharePoint and Skype explained their (strong) feelings on the matter. The upshot was an online debate to explore the attributes of people who lead successful Office 365 deployments. You can listen to a recording online.
  6. Microsoft 365 Licensing, Yammer and Teams, Office DPIA, and Exchange February 15, 2019 1:30 pm- Office 365 changes all the time, which is good because it keeps the Office 365 for IT Pros writing team busy and happy. Discussions this week included Microsoft's response to a Dutch DPIA, the effect large Teams have on Yammer, how Exchange Online validated a fix to a security problem, and graphics to help understand the components of the Microsoft 365 E3 and E5 plans.
  7. It’s Now the Teams Admin Center… And Some New Teams Usage Reports February 14, 2019 12:30 pm- The Teams Admin Center has been renamed to remove any reference to Skype for Business Online. The console now includes a set of new Teams usage reports. The reports differ from what's available in the Office 365 Admin Center and aren't quite as powerful, but we can expect Microsoft to improve and refine these reports over time.
  8. Azure Active Directory Still a Weakness for Office 365 February 13, 2019 10:49 am- The January 24-25 Azure Active Directory outage demonstrated once again how important AAD is to Office 365. Microsoft's Post Incident Report tells us what happened to deprive 1% of the users in Europe of service. That doesn't sound a lot, but you'd be mad if you were affected.
  9. Using Search-Mailbox to Process Multiple Mailboxes February 12, 2019 12:14 pm- The Search-Mailbox cmdlet is a very powerful weapon for Exchange administrators. It has some quirks, but the Invoke-Command cmdlet helps us get around one, which is how to use a different search query for each mailbox processed in a set of mailboxes.
  10. Setting Free-form Status Messages for Teams Users February 11, 2019 11:05 am- Teams users can now set their own status message to inform co-workers about what they're up to for the next few hours, days, or on an ongoing basis. It's a small but useful feature that seems to have crept into Teams without much publicity!
  11. Office 365 Exposed Episode 13 Now Available February 8, 2019 9:34 am- After a brief hiatus, the recording for episode 13 of the Office 365 Exposed podcast is now available. We think it includes some interesting topics and the arguments aren't too heated. See what you think and let us know in the comments.
  12. Teams Membership Limit Raised to 5,000 (per team) February 8, 2019 9:00 am- Microsoft revealed that Teams now supports a increase to 5,000 members per team. The new maximum will help large organizations like Accenture (the largest user of Teams). Even with the increased limit, Teams might not be the best choice for organization-wide communications for the largest companies. Yammer is still the Microsoft coillaboration scalability champ.
  13. Exchange Page Patching and Native Data Protection in Office 365 February 7, 2019 10:08 am- Some backup vendors think that corruption can lead to data loss within Office 365. The possibility exists, but the page patching mechanism for databases incorporated into Exchange Online DAGs makes corruption a lot less likely, especially when mailboxes are protected by four database copies and Exchange applies many other techniques to ensure the consistency of the databases.
  14. New OWA Now Generally Available to Office 365 Tenants February 6, 2019 8:59 am- The new version of OWA (sometimes called Outlook on the Web, or Outlook Web Access) is now generally available to all Office 365 tenants. Although the new OWA has some nice features, you might want to turn off the user choice (toggle) to move the new UI until you've had time to prepare the help desk, documentation, and that sort of thing.
  15. Cloud App Security Alerts Flow into Office 365 Audit Log February 5, 2019 12:42 pm- Security alerts from Office 365 Cloud App Security now flow into the Office 365 Audit Log, which means that you can run the Search-UnifiedAuditLog to find the alerts. Unhappily, more work than should be needed is necessary to extract the interesting information from the alert records.
  16. Exchange Online Transport Rule to Encrypt Sensitive Email February 4, 2019 12:31 pm- Microsoft has released details of an Exchange Online transport rule to encrypt outbound email containing sensitive data types like credit card numbers. The rule works (after fixing the PowerShell), but needs to be reviewed and possibly adjusted to meet the needs of Office 365 tenants.
  17. Teams Compliance Records Focused on by New Report February 1, 2019 10:29 am- A new report commissioned by Microsoft explains how Exchange Online and the Security and Compliance Center meet the electronic records requirements of regulatory bodies like the SEC and FINRA. Within the report, there's some news about changes to the way that Office 365 handles Teams compliance records stored in Exchange Online. And after all that, we consider how some backup vendors treat Teams compliance records as equivalent to the data stored in the Teams Azure services.
  18. Teams Growth Accelerates to 420,000 Organizations January 31, 2019 2:11 pm- According to Microsoft's FY19 Q2 results released on January 30, Teams is now used by 420,000 organizations. That's a strong growth rate over the 329,000 number given at Ignite 2018. And with Office 365 still growing, there's plenty of room for Teams to expand.
  19. Good and Bad Marketing (Technical) Blog Posts January 30, 2019 12:49 pm- The internet makes it easy to find material to read about technical topics. Unfortunately, a lot of content is rubbish. In this post, we compare two recent technical articles and explain why we think one marketing post is good and the other isn't up to scratch.
  20. Email One-Time Passcodes for Azure Active Directory January 29, 2019 1:28 pm- Microsoft has launched email one-time passcodes (OTP) into preview for Azure Active Directory guest accounts. It's all to do with better collaboration. OTP doesn't support Teams, Planner, or Office 365 Groups yet, but it can be used to share documents from SharePoint Online or OneDrive for Business.
  21. Tuning PowerShell for Office 365 Group Membership January 28, 2019 11:07 am- A recent article prompted a check to see whether a PowerShell recommendation made sense and delivered better performance when executing a command to extract the membership of Office 365 Groups performance. As it turns out, the recommendation is valid, but whether you notice any difference is arguable.
  22. Exporting User GDPR Data From Delve January 25, 2019 10:18 am- Delve has options to export user information that seem to have been added to help Office 365 tenants comply with Article 15 of GDPR. Unhappily, the export is rudimentary and the JSON information will be impenetrable to normal human beings.
  23. Exploring SharePoint Document Identifiers January 23, 2019 11:38 am- It's easy to be fearful when companies move work to the cloud. But the simple fact is that there's more work than ever before to do to master all of Office 365. Just go looking!
  24. New OWA Maturing in Different Ways January 22, 2019 11:15 am- The new version of OWA is maturing and new features are turning up on a weekly basis. You can now schedule a Teams meeting from OWA and the prospect of joyful animations hang in the air. But only for Office 365 users as there's no sign that the new OWA will come to Exchange on-premises servers.
  25. January 21 2019 updates for the Office 365 for IT Pros eBook Office 365 for IT Pros January 2019 Update Released January 21, 2019 12:17 pm- Updated Files Office 365 for IT Pros Now Available The Office 365 for IT Pros writing team is thrilled to release the 10th update for the 2019 edition. Dated January 21, 2019, the updated files are now online and available on (for subscribers who bought the EPUB and PDF versions) and Amazon (for those …
  26. Office 365 Network Performance (POC) Tool January 20, 2019 4:25 pm- Microsoft's new Network Performance Tool is a proof of concept for Office 365 tenants to check network connections to Microsoft's network and Office 365. The tool might help you understand more about your connection into Microsoft, but it won't fix any last mile problems.
  27. Office 365 Bits n’ Pieces January 2019 January 18, 2019 10:56 am- A collection of news snippets loosely connected to different bits of Office 365 that really don't justify a separate article. But the factoids are interesting all the same...
  28. The Power of Amazon Reviews January 17, 2019 9:14 am- We're confused because people continue to buy the Kindle version of the older edition of the Office 365 for IT Pros eBook for $50 more than the current book. The only reason we can think this happens is the reviews the older book has.
  29. First Look at Teams for Frontline Workers (aka Shifts) January 16, 2019 9:05 am- The Shifts app is now available to Office 365 tenants worldwide. Hosted as a Teams app, the idea is that managers can build out and publish schedules for hourly-paid frontline workers, who can then view their hours and request changes.
  30. Using the Inbound WebHook to Post to a Team Channel or Office 365 Group January 14, 2019 10:22 am- It's easy to create a webhook connector to post information to a team channel or an Office 365 group. What might not be quite so easy is formatting the JSON payload. Here's how to use a template card to simplify the process.
  31. The Dangers of Cut and Paste Technology Coverage January 11, 2019 10:00 am- We all make mistakes - it's part of life. But it's sad that so many web sites and blogs pick up and repeat mistakes found in press releases and other material. Life would be better if we had more time to consider what we publish, but the speed of the cloud sometimes makes time hard to find.
  32. Planner Now Available in U.S. Government Cloud January 10, 2019 9:29 am- The Office 365 Planner app is now available for U.S. Government Cloud tenants. Only it's not the full Planner because some bits still have to be tested to make sure that they meet government standards.
  33. Service Domain Prefix Appears and Disappears in Exchange Online Cmdlets January 9, 2019 11:31 am- A change made to fix a problem in Exchange Online introduced another problem in that service domains started to show up as prefixes in the data returned by PowerShell cmdlets. Microsoft has reversed the change, but the way things happened creates some questions.
  34. Applying Autosignatures with Transport Rules January 8, 2019 11:39 am- Office 365 tenants can use Exchange transport rules to apply autosignatures to outbound email, including messages protected with encryption. You can even include some properties of the sender extracted from Azure Active Directory, and you can add an exception so that the autosignature isn't applied to replies.
  35. Using Exchange Session Identifiers in Audit Log Records January 7, 2019 10:49 am- Exchange Online now captures session identifiers in its mailbox and admin audit records that are ingested in the Office 365 audit log. That's interesting and useful, but how do you access and interpret this information on a practical level?
  36. Exchange Online Adds Message Access to Audited Actions January 6, 2019 4:36 pm- Exchange Online will soon capture audit records for any access to a message in a mailbox. Initially, the audit records will not be ingested into the Office 365 audit log, but that will happen in the future.
  37. MyAnalytics Spreads Its Wings to Teams and SharePoint January 4, 2019 9:24 am- Microsoft's announcement that MyAnalytics is available to many more Office 365 users is welcome. The technology interest in the announcement is the spread of coverage to include SharePoint Online, OneDrive for Business, and Teams.
  38. Apply Column Formatting in SharePoint Online with No Code! January 3, 2019 10:12 am- A recent update means that you can now apply column formatting for SharePoint Online lists and document libraries without the need to write JSON code.
  39. Adding Global Contacts for an Office 365 Tenant January 2, 2019 1:43 pm- You can use a public folder to store and share global email contacts, but a better approach is to use Exchange mail contacts. These objects show up in the Exchange GAL and OAB and are available to all Outlook clients (and some third-party clients too).
  40. The Handy Save for Later Feature in SharePoint Online December 30, 2018 10:53 am- The Save for Later feature gives SharePoint Online users a way to mark documents and news items so that they can easily follow up and read the full content of those items.
  41. The Trouble with Yammer December 22, 2018 4:54 pm- After being accused of bias against Yammer, I thought about whether this is true. But it's not bias - it is frustration that Yammer remains so detached from the rest of Office 365 six and a half years after Microsoft bought the technology.
  42. Largest Teams Deployment Reaches 170,000 Users December 21, 2018 10:46 am- Microsoft's CMO says that the largest customer deployment of Teams (Accenture) has reached 170,000 users. Numbers like this underline the success of Office 365's fastest growing application.
  43. Sending Email with PowerShell and Exchange Online December 20, 2018 3:32 pm- You can use the Send-MailMessage cmdlet in a PowerShell script to send mail messages via Exchange Online. And sometimes your IP address might be listed as a spammer, which is bad. All in all, authenticated client submission seems best.
  44. Sending Protected Email to Teams, Yammer, Groups, and Shared Mailboxes December 19, 2018 12:48 pm- Encrypted email is becoming more common within Office 365. Things usually flow smoothly when sending protected messages to email recipients, but other Office 365 recipient types like Teams and Yammer might not be able to handle protected email.
  45. Azure Active Directory Feature Bans Custom Words from User Passwords December 18, 2018 6:09 pm- Making sure that Office 365 user (and administrator) accounts have good passwords is a never-ending task. A new preview feature in Azure Active Directory helps by ensuring that users can't include common words specific to the organization (like its name) in a password. It's another piece in the puzzle to frustrate potential attackers.
  46. Teams Meeting Room Licenses Now Available for Purchase December 17, 2018 2:22 pm- You can now buy a Meeting Room license to connect Teams to a device in the room. The license allows the device to participate in Teams meetings.
  47. Searching for Encrypted Office 365 Information December 15, 2018 9:45 pm- Making it easy to protect Office 365 content with encryption is great, but it has some downsides too. One of the obvious problems that we have is that encrypted documents in SharePoint and OneDrive for Business libraries can't be found unless their metadata holds the search phrase.
  48. December 2018 Update Issued for Office 365 for IT Pros (2019 Edition) December 14, 2018 10:42 am- The December 2018 update for the Office 365 for IT Pros eBook is now available for subscribers to download.
  49. Teams Passes Slack: What a Surprise December 13, 2018 1:10 am- A survey found that Teams is now the second most popular chat application in large businesses and has put Slack into third position. But anyone who has tracked the numbers isn't surprised because Teams has been growing strongly for some time.
  50. Protected PDFs Now Generally Available with Azure Information Protection December 12, 2018 12:25 am- The Microsoft-Adobe initiative to support Azure Information Protection for PDF files has reached general availability. Things look good and the issues encountered in the preview are removed. You can store protected PDFs inside Office 365, but be prepared to download the files to be able to view them.
  51. Tracking the Managed Folder Assistant December 10, 2018 10:48 am- The Exchange Online Managed Folder Assistant (MFA) runs in the background on a workcycle basis to make sure that mailboxes are processed at least once a week. Most of the processing involves mailbox and Office 365 retention policies and runs smoothly, but how do you know what MFA has done?
  52. Report for Email Encryption in the Security and Compliance Center December 9, 2018 1:36 pm- The Office 365 Security and Compliance Center includes a report to detail encrypted email. The report is in preview. It's a nice insight into user activity, even if it has some glitches that need to be sorted out before it becomes generally available.
  53. What Office 365 Retention Policies Apply to SharePoint Online Sites? December 7, 2018 5:27 pm- Knowing how retention policies process Office 365 data can be hard to understand, especially if multiple policies are involved. Office 365 doesn't give a global view of how retention policies affect workloads, but here's how to use PowerShell to find out what policies process the sites in a tenant.
  54. Logos in Email – Another Way to Stop Spoofing December 6, 2018 11:59 am- Including a company's logo when listing or displaying email is another way to give users confidence that the email is in fact from that company. Business Indicators for Message Identification is a draft standard that might become generally used by all email clients. But for now. Microsoft has their own business profile "brand card" program, and that's where OWA gets its logos.
  55. Reporting the Connection Protocol Used by Outlook Mobile Clients December 5, 2018 11:02 am- Microsoft has refreshed the Outlook Mobile architecture. They suggest that you run some PowerShell to report clients connecting via the old and new architectures. Their code works, but we think ours is better.
  56. Including a Teams Channel in an Exchange Distribution List December 3, 2018 12:36 pm- Now that we know all about the different email addresses used by Office 365 Groups and Teams, the question arises of how to include a team channel as a member of a distribution group. As it turns out, there's a simple way and a more complicated way.
  57. Groups and Teams Have Different Email Addresses December 2, 2018 2:16 pm- Some recent questions in the Microsoft Technical Community show confusion about the email addresses used by Office 365 Groups and Teams. Here's our attempt to clarify.
  58. Azure Information Protection Client Supports S/MIME December 1, 2018 5:06 pm- The latest version of the Azure Information Protection (AIP) client supports the ability to associate S/MIME protection with an AIP label. Although interesting, it's a feature unlikely to be of much practical use to the majority of Office 365 tenants.
  59. Teams Upgrades PowerShell Module to 0.9.6 November 30, 2018 1:01 pm- Teams has released version 0.9.6 of its PowerShell module. You should upgrade to the new module because it fixes some bugs and allows administrators to manage any team, even when they're not a team owner.
  60. Phishing: Office 365 Retrieve Pending Messages for Domain November 29, 2018 3:29 pm- Another day, another phishing attempt, this time trying to make unwary Office 365 administrators click on a link to "Retrieve Pending Messages" for their domain. I'm surprised this one got through!
  61. Phishing: EFile Document Notification November 28, 2018 3:04 pm- A very exciting message arrived in my mailbox. So exciting that it was too good to be true. Some basic checks made me more suspicious and then Outlook's Message Header Analyzer gave more evidence to think the message was bad.
  62. How to Embed External Content in Modern SharePoint Online Pages November 28, 2018 2:15 pm- Embedding external content in modern SharePoint Online (SPO) pages is a really easy task using Microsoft’s out of the box Embed webpart. In the WebPart settings panel we can add the external content URL (such as a YouTube video) or by using the standard <iFrame> HTML tag: In the event we want to add a …
  63. Azure Information Protection and Office 365 Office 365 Sensitivity Labels Bring Rights Management to the Masses November 27, 2018 2:14 pm- Rights management and encryption are likely to be a much more common Office 365 feature in the future. Sensitivity labels makes protection easy for users to apply through Office apps. The downside is that protection makes content harder to access for some Office 365 and ISV functionality.
  64. Populating Team or Group Membership from Distribution Lists November 26, 2018 12:59 pm- Exchange Online distribution lists can be used to populate the membership of Office 365 Groups or Teams by applying a little PowerShell magic. Here's how.
  65. How to Remove Thousands of Items from an Exchange Online Mailbox November 25, 2018 3:29 pm- A question asks how to remove a bunch of emails from a shared mailbox. You can use OWA to do the job, especially with its Cleanup Mailbox option, but perhaps some administrative action is needed.
  66. Add Admins to Every Office 365 Group November 24, 2018 2:51 pm- A reader asked if it is possible to add an administrator account to every Office 365 Group. This feature doesn't exists OOTB, but it's an easy task to script with PowerShell.
  67. OneDrive for Business Launches the Recent View November 24, 2018 11:43 am- Microsoft is now rolling out the "Recent" view in OneDrive for Business to expose the set of recently-accessed documents for a user.
  68. Tip: Make Sure to Add Owners as Members When Creating New Teams November 23, 2018 2:04 pm- Teams offers a number of ways to create new teams, which is good. However, if you create a new team with PowerShell, make sure that you add the team owners to the members list as otherwise they won't be able to access Planner.
  69. Office 365 Data Governance at the European SharePoint Conference 2018 November 22, 2018 3:15 pm- On Wednesday, November 28, Tony's speaking about Office 365 Data Governance at the European SharePoint Conference in Copenhagen, Denmark. The topic is interesting, if only because its source material changes all the time.
  70. Reporting MFA-Enabled Accounts November 21, 2018 9:57 am- When a problem arises, it's good to know what user accounts are affected. In the case of the recent MFA outage, the need existed to report the list of accounts that were MFA-enabled. Here's how to do the job with PowerShell.
  71. What Happens When MFA Fails? November 20, 2018 11:11 am- Microsoft's Azure-based multi-factor authentication (MFA) service experienced a service outage on November 19. Does this mean that we should disable MFA for accounts?
  72. Reporting Protected Files November 19, 2018 12:31 pm- The availability of Azure Information Protection and Office 365 sensitivity labels allow tenants to protect important and confidential files. That's nice, but it's even better when you know what files are protected. Here's how to use PowerShell to create a report about those files.
  73. Simple Site Scripts creation with SharePoint Site Designer November 18, 2018 11:06 am- Not everyone likes writing JSON files, so when the time comes to customize a site design or site script for SharePoint Online, it's a relief to find that a visual tool is available for the job.
  74. Move Personal Form to Group Forms November 17, 2018 2:57 pm- Microsoft has updated the Forms application with the ability for a form owner to move a a form from their personal space to an Office 365 Group. It's a small but good improvement.
  75. November Update Issued for Office 365 for IT Pros eBook November 16, 2018 1:33 pm- Roughly a month after our last update, we've issued update #8 for Office 365 for IT Pros (2019 Edition). It's a big update with changes for 14 chapters. Please download the updated content soon!
  76. Finding Inactive Distribution Lists November 15, 2018 12:15 pm- A recent correspondent asked how to find inactive distribution lists in Exchange Online. We didn't have a good answer in the book, so here's some PowerShell code to do the trick.
  77. Restricting the Flow of Audit Data for User Office 365 Activities to Microsoft November 14, 2018 11:06 pm- Following a Dutch report saying that Office 365 might violate GDPR, some thoughts about how to restrict some of the flows of information from an Office 365 tenant to Microsoft.
  78. Teams Now Formally Supports Dynamic Office 365 Groups November 13, 2018 1:32 pm- The latest version of the Teams desktop and browser clients support the creation of dynamic teams based on dynamic Office 365 Groups. The functionality is welcome, as long as you can pay for it as every member who comes within the scope of a query used for a dynamic team needs an Azure AD P1 license.
  79. Microsoft Working on G Suite to Office 365 Migration Tools November 12, 2018 1:13 pm- Microsoft is working on tools to move email, calendar, and contacts from G Suite to Exchange Online with availability in Q2 2019. It's hardly a surprise.
  80. Creating a List of Teams for Processing in Power BI November 11, 2018 5:13 pm- Office 365 doesn't include a way to export a list of Teams in a form that can be imported by Power BI, but PowerShell makes it an easy task to accomplish. Here's a script to help solve the problem.
  81. Setting a Team Picture with PowerShell November 10, 2018 2:35 pm- Team owners can set the picture for their teams, but can tenant administrators do the same thing? As it turns out, no. But there's a reason why.
  82. Stream Adds Intelligent Features for All Office 365 Commercial Users November 9, 2018 12:27 pm- Microsoft has made the intelligent features of Stream available to all Office 365 commercial customers, meaning that you can now luxuriate in closed captions, automatic transcripts and deep search, and face recognition.
  83. Office 365 Privileged Access Management: Too Flawed and Too Exchange? November 8, 2018 3:55 pm- Microsoft has launched Privileged Access Management (PAM) for Office 365. The name's incorrect because PAM only works for Exchange Online right now. PAM is based on RBAC, which is good, but is the implementation too Exchange-centric?
  84. Office 365 Tenants to Microsoft: Send Training Tips to End Users – No Thanks! November 7, 2018 12:10 pm- Microsoft's grand plan to send helpful emails to Office 365 users hit a roadblock when customers said "No thanks" to the idea. Microsoft has now taken the plan back for mature reflection. Does this kind of initiative reflect a certain arrogance on the part of Microsoft?
  85. Teams Gets a PowerShell Refresh November 6, 2018 3:33 pm- The new version of the Teams PowerShell module (0.9.5) supports a Get-Team that's actually useful because it can return a full list of teams in the tenant. But there's still some work to do...
  86. Thirty Days of Microsoft Graph November 5, 2018 3:39 pm- The Microsoft Graph developers and some other folks inside Microsoft have launched a new series of short blog posts to help people become acquainted with the Graph. It's a nice idea, and one that's worthwhile to read.
  87. Blocking Guest Users from Office 365 Groups November 4, 2018 7:40 pm- By default, the Groups policy for an Office 365 tenant allows group owners to add guest users to group membership. You can block this access if necessary, but it's probably not what you want to do as blocking brings guest access to a complete halt across the tenant.
  88. Using the Office 365 Audit Log to Find SendAs Events November 3, 2018 3:26 pm- Exchange administrators are accustomed to looking through mailbox audit logs to find details of events. Those same events are in the Office 365 audit log, so that's the place to go look for information, like when you want to find out who sent a message from a shared mailbox using the SendAs permission.
  89. Any Authenticated Users Permission Now Generally Available November 2, 2018 1:36 pm- Azure Information Protection rights management templates now support the Any Authenticated Users permission to allow Office 365 users to share email and documents with anyone who can authenticate with Azure Active Directory or has an MSA account or uses a federated service.
  90. The Question of Office 365 Backups November 1, 2018 4:36 pm- Do Office 365 tenants need to take backups of Exchange Online, SharePoint Online, Teams, Planner, Yammer, and the other data that they accumulate. I don't think they do in most cases, and the problem is exacerbated because most backup solutions sold for Office 365 can't deal with the full suite.
  91. Microsoft Cancels Windows S Client for Teams October 31, 2018 12:59 pm- Microsoft will retire the Windows S client for Teams on November 29, 2018. The decision to double-down on the Electron-based client is probably due to the fact that not many people use Windows S.
  92. Purging Bad Stuff from Teams October 30, 2018 2:26 pm- Do you need to remove some offensive or otherwise doubtful material from Teams? If the original author won't do the right thing, the team owner or an Office 365 administrator might have to step in to do the right thing.
  93. Existing Guest Accounts and the Azure B2B Collaboration Policy October 29, 2018 2:18 pm- When you impose a block on certain domains, you'd like to think that applications like Teams will respect that block. As it turns out, if you have some lingering guests in your Azure Active Directory, the B2B collaboration policy might not be as effective as you'd hope.
  94. Protecting Email Holding Sensitive Data October 28, 2018 2:14 pm- Office 365 offers different ways to apply encryption to important messages. When those messages hold sensitive data known to Office 365, like credit cards or passport numbers, we can define a transport rule or DLP policy to protect outbound email automatically. And while you can define rules and policies through the GUI, PowerShell is available too.
  95. Migrating On-Premises Distribution Lists to Exchange Online October 27, 2018 12:32 pm- If you run a hybrid Exchange deployment, you probably have some on-premises distribution lists that you'd like to move to the cloud. Office 365 offers no way to do this, so it's up to PowerShell. Instead of starting from scratch, you can use a script created by Tim McMichael of Microsoft and amend it to meet your needs. PowerShell is just great.
  96. Protecting PDFs the Native Way October 26, 2018 1:26 pm- On October 12, Microsoft and Adobe launched the public preview of the native integration of Azure Information Protection for PDF files. Knowledge about protection is built into the latest version of the Acrobat reader, meaning that third-party tools are no longer needed to process protected PDFs.
  97. Office 365 Now Has 155 Million Active Users October 25, 2018 2:45 pm- Office 365 continues to grow and has now reached the lofty heights of 155 million monthly active users. Just how long Microsoft can keep growing its cloud services is the question that no one can answer!
  98. Disabling Basic Authentication for Exchange Online (Preview) October 24, 2018 11:49 am- Microsoft has released a preview of the cmdlet set to allow tenants to create and manage protocol authentication policies for Exchange Online. It's a great chance to disable basic authentication and reduce the attack surface for password spraying.
  99. Can Teams Replace Email October 23, 2018 11:39 am- Tony spoke about "Can Teams Replace Email" at the Modern Workplace Conference in Paris on October 17. Here's a sketch note about what he said and a copy of the slides.
  100. Network performance and connectivity evaluation with Network Testing Companion October 22, 2018 1:00 pm- Microsoft has released a nifty Network Testing Companion to help Office 365 admins validate that their network can support the deployment of Teams and Skype for Business Online.

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