Secure external attachments with Purview encryption
If you are using Microsoft Purview to secure email attachments, it’s important to understand how Conditional Access (CA) policies and Guest account settings influence the experience for external recipients. Scenario 1: Guest Accounts Enabled ✅ Smooth Experience Each recipient is provisioned with a guest account, allowing them to access the file seamlessly. 📝 Note This can result in a significant increase in guest users, potentially in hundreds or thousands, which may create additional administrative workload and management challenges. Scenario 2: No Guest Accounts 🚫 Limited Access External users can only view attachments via the web interface. Attempts to download then open the files in Office apps typically fail due to repeated credential prompts. 🔍 Why? Conditional Access policies may block access to Microsoft Rights Management Services because it is included under All resources. This typically occurs when access controls such as Multi-Factor Authentication (MFA) or device compliance are enforced, as these require users or guests to authenticate. To have a better experience without enabling guest accounts, consider adjusting your CA policy with one of the below approaches: Recommended Approach Exclude Microsoft Rights Management Services from CA policies targeting All resources. Alternative Approach Exclude Guest or External Users → Other external users from CA policies targeting All users. Things to consider These access blocks won’t appear in sign-in logs— as this type of external users leave no trace. Manual CA policy review is essential. Using What if feature with the following conditions can help to identify which policies need to be modified. These approaches only apply to email attachments. For SharePoint Online hosted files, guest accounts remain the only viable option. Always consult your Identity/Security team before making changes to ensure no unintended impact on other workloads. References For detailed guidance on how guest accounts interact with encrypted documents, refer to Microsoft’s official documentation: 🔗 Microsoft Entra configuration for content encrypted by Microsoft Purview Information Protection | Microsoft Learn
Java MIP SDK 1.17.154: commitAsync() TemplateNotFoundError (C# OK; Java fails Win & Ubuntu)
TL;DR Java SDK 1.17.154: calling setLabel() then commitAsync() fails with TemplateNotFoundError (TemplateId=2ea3c830-...). Same label/code works on Java 1.16.x and C# 1.17.154. Policy cache cleared, templates/labels verified, token/tenant checked—issue persists. Environment SDK (Java): 1.16.x (OK), 1.17.154 (FAIL) SDK (C#): 1.17.154 (OK) OS (Java): Windows 10/11 (win32 build), Ubuntu 20.04 / 22.04 / 24.04 Java: Corretto/OpenJDK 17.0.16 (x64) Service/Tenant: Microsoft Purview Information Protection Auth: (e.g., user delegated token / app-only token) Code Snippet (Java) // Label apply options LabelingOptions labelingOptions = new LabelingOptions(); labelingOptions.setAssignmentMethod(AssignmentMethod.PRIVILEGED); labelingOptions.setDowngradeJustified(true); labelingOptions.setJustificationMessage("Label Apply"); // Get label Label label = fileEngine.getLabelById(labelId); // Apply label (no explicit template handling) fileHandler.setLabel(label, labelingOptions, new ProtectionSettings()); // Commit File workFile = new File(domainFolder, UidUtil.makeUid()); CompletableFuture<Boolean> commitFuture = fileHandler.commitAsync(workFile.getAbsolutePath()); commitFuture.get(); // <-- Throws TemplateNotFoundError on 1.17.154 Stack trace excerpt: Caused by: com.microsoft.informationprotection.internal.gen.Error: TemplateNotFoundError: Could not find template with id: 2ea3c830-5a0e-4eea-b48b-c72186d453c0, BadInputError.Code=General, CorrelationId=42ffaad4-3a0f-4986-ba9d-b5a79c5fd076 (ProtectionEngine), CorrelationId=16819f70-e419-473f-9895-c756f3dd5e4b (FileHandler) at com.microsoft.informationprotection.internal.gen.SdkWrapperJNI.SwigDirector_FileHandler_Observer_OnCommitFailure(SdkWrapperJNI.java:2688) Expected Behavior setLabel() should apply the label (and its protection) and commit successfully, as it does in Java 1.16 and C# 1.17.154. Actual Behavior commitAsync() fails with TemplateNotFoundError for the GUID referenced by the label’s ApplyProtectionAction. What I’ve Tried Policy/cache refresh: Deleted %LOCALAPPDATA%\Microsoft\MSIP\ / ~/.mip/, reloaded engine. Template/label verification: Confirmed existence and publish scope in Purview portal & via PowerShell/Graph. Label actions check: policyEngine.getLabelActions(labelId) shows an ApplyProtectionAction with that GUID. Token/tenant sanity check: Correct scopes and same tenant. Rollback test: Java 1.16 works; C# 1.17.154 works. Questions Any breaking change in Java 1.17 regarding how protection templates are resolved during setLabel()? Is this a known issue specific to Java SDK 1.17.154 (win32 & Ubuntu 20/22/24 builds)? Should we now explicitly use ProtectionDescriptor / SetProtection() in Java? Can someone review the service logs using the CorrelationIds above? Happy to provide additional logs, PowerShell/Graph queries, or action dumps if needed. Thanks!
C# MIP SDK v1.17.x - AccessViolationException on creation of MIPContext in 64-bit console app
I first logged this on https://stackoverflow.com/questions/79746967/accessviolationexception-when-creating-mipcontext-after-upgrade-to-v1-17 and the responses there have indicated I should raise with Microsoft a a likely bug, but I don't see a clear route to reporting other than here so any response would be appreciated, even if just to direct me to the appropriate reporting location. I've built a simple console app that demonstrates this issue that I'm happy to provide but we're seeing an issue with the 1.17.x version of the C# MIP SDK where an AccessViolationException is being thrown when trying to create an MIP context object. This is for a .Net Framework 4.8 console app built in 64-bit configuration, deployed to a Windows Server 2016 with the latest VC++ redistributable (14.44.35211) installed (both x86 and x64 versions), though we've seen the same on Windows Server 2019 and 2022. When the same app is built in 32-bit and deployed to the same environment the exception doesn't occur. The following code is what I've used to repro the issue: MIP.Initialize(MipComponent.File); var appInfo = new ApplicationInfo { ApplicationId = string.Empty, ApplicationName = string.Empty, ApplicationVersion = string.Empty }; var diagnosticConfiguration = new DiagnosticConfiguration { IsMinimalTelemetryEnabled = true }; var mipConfiguration = new MipConfiguration(appInfo, "mip_data", LogLevel.Info, false, CacheStorageType.InMemory) { DiagnosticOverride = diagnosticConfiguration }; //Expect BadInputException here due to empty properties of appInfo //When built as part of a 64-bit console app this causes AccessViolationException instead MIP.CreateMipContext(mipConfiguration); The AccessViolationException crashes the console app, with the following logged in the Windows Event Log: Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.AccessViolationException at Microsoft.InformationProtection.Internal.SdkWrapperPINVOKE.MipContext_Create__SWIG_1(System.Runtime.InteropServices.HandleRef) at Microsoft.InformationProtection.Internal.MipContext.Create(Microsoft.InformationProtection.Internal.MipConfiguration) at Microsoft.InformationProtection.Utils.MIPHelper.CreateMipContext(Microsoft.InformationProtection.MipConfiguration) The issue doesn't occur with the latest 1.16 version (1.16.149) of the SDK but does appear to be in all versions of the 1.17 release. Library: C# MIP SDK v1.17.x Target App: .Net Framework 4.8 console app Deployed OS: Windows Server 2016, 2019 and 2022 (With .Net Framework 4.8 and latest VC++ redist installed)Java MIP SDK 1.17.154: commitAsync() TemplateNotFoundError (C# OK; Java fails Win & Ubuntu)
TL;DR Java SDK 1.17.154: calling setLabel() then commitAsync() fails with TemplateNotFoundError (TemplateId=2ea3c830-...). Same label/code works on Java 1.16.x and C# 1.17.154. Policy cache cleared, templates/labels verified, token/tenant checked—issue persists. Environment SDK (Java): 1.16.x (OK), 1.17.154 (FAIL) SDK (C#): 1.17.154 (OK) OS (Java): Windows 10/11 (win32 build), Ubuntu 20.04 / 22.04 / 24.04 Java: OpenJDK 17.0.16 (x64) Service/Tenant: Microsoft Purview Information Protection Auth: (e.g., user delegated token / app-only token) Code Snippet (Java) // Label apply options LabelingOptions labelingOptions = new LabelingOptions(); labelingOptions.setAssignmentMethod(AssignmentMethod.PRIVILEGED); labelingOptions.setDowngradeJustified(true); labelingOptions.setJustificationMessage("Label Apply"); // Get label Label label = fileEngine.getLabelById(labelId); // Apply label (no explicit template handling) fileHandler.setLabel(label, labelingOptions, new ProtectionSettings()); // Commit File workFile = new File(domainFolder, UidUtil.makeUid()); CompletableFuture<Boolean> commitFuture = fileHandler.commitAsync(workFile.getAbsolutePath()); commitFuture.get(); // <-- Throws TemplateNotFoundError on 1.17.154 Stack trace excerpt: Caused by: com.microsoft.informationprotection.internal.gen.Error: TemplateNotFoundError: Could not find template with id: 2ea3c830-5a0e-4eea-b48b-c72186d453c0, BadInputError.Code=General, CorrelationId=42ffaad4-3a0f-4986-ba9d-b5a79c5fd076 (ProtectionEngine), CorrelationId=16819f70-e419-473f-9895-c756f3dd5e4b (FileHandler) at com.microsoft.informationprotection.internal.gen.SdkWrapperJNI.SwigDirector_FileHandler_Observer_OnCommitFailure(SdkWrapperJNI.java:2688) Expected Behavior setLabel() should apply the label (and its protection) and commit successfully, as it does in Java 1.16 and C# 1.17.154. Actual Behavior commitAsync() fails with TemplateNotFoundError for the GUID referenced by the label’s ApplyProtectionAction. What I’ve Tried Policy/cache refresh: Deleted %LOCALAPPDATA%\Microsoft\MSIP\ / ~/.mip/, reloaded engine. Template/label verification: Confirmed existence and publish scope in Purview portal & via PowerShell/Graph. Label actions check: policyEngine.getLabelActions(labelId) shows an ApplyProtectionAction with that GUID. Token/tenant sanity check: Correct scopes and same tenant. Rollback test: Java 1.16 works; C# 1.17.154 works. Questions Any breaking change in Java 1.17 regarding how protection templates are resolved during setLabel()? Is this a known issue specific to Java SDK 1.17.154 (win32 & Ubuntu 20/22/24 builds)? Should we now explicitly use ProtectionDescriptor / SetProtection() in Java? Can someone review the service logs using the CorrelationIds above? Happy to provide additional logs, PowerShell/Graph queries, or action dumps if needed. Thanks!Purview Webinars
REGISTER FOR ALL WEBINARS HERE Upcoming Microsoft Purview Webinars JULY 15 (8:00 AM) Microsoft Purview | How to Improve Copilot Responses Using Microsoft Purview Data Lifecycle Management Join our non-technical webinar and hear the unique, real life case study of how a large global energy company successfully implemented Microsoft automated retention and deletion across the entire M365 landscape. You will learn how the company used Microsoft Purview Data Lifecyle Management to achieve a step up in information governance and retention management across a complex matrix organization. Paving the way for the safe introduction of Gen AI tools such as Microsoft Copilot. 2025 Past Recordings JUNE 10 Unlock the Power of Data Security Investigations with Microsoft Purview MAY 8 Data Security - Insider Threats: Are They Real? MAY 7 Data Security - What's New in DLP? MAY 6 What's New in MIP? APR 22 eDiscovery New User Experience and Retirement of Classic MAR 19 Unlocking the Power of Microsoft Purview for ChatGPT Enterprise MAR 18 Inheriting Sensitivity Labels from Shared Files to Teams Meetings MAR 12 Microsoft Purview AMA - Data Security, Compliance, and Governance JAN 8 Microsoft Purview AMA | Blog Post 📺 Subscribe to our Microsoft Security Community YouTube channel for ALL Microsoft Security webinar recordings, and more!Sharing: PDF readers that support Purview labels
As I was researching on Adobe Acrobat reader and Sensitivity labels, I decided to check if the common alternative PDF readers out there are able to support Purview MIP Sensitivity labels. There is already a published documentation on this for SharePoint-Compatible PDF readers that supports Microsoft IRM: https://learn.microsoft.com/en-us/purview/sp-compatible-pdf-readers-for-irm (last updated Nov-2023) but I wanted to see if these same PDF readers supports the ability for end-users to use/ select labels similar to that of Adobe Acrobat As of 11-June-2025; atleast one of them clearly do: Nitro PDF: Yes. Documentation shows that users can see and use the sensitivity labels. PDF -X.change Editor: Yes. Documentation show that users can see and use the sensitivity labels. (check the official website, I can't hyperlink it because the site is blocked. FOX PDF editor: No. Documentation only states RMS and not clear if it show Purview labels. This is for F.O.X.I.T editor (spelled without the ".") but for some reason there is a community ban on that word and it won't allow me to post the full name PDFescape: No. Sumatra PDF: No Okular: No If there are other PDF readers that I've missed, I encourage you list it down in the comment below. Would love to grow this list.Error Information Rights Management not configured
Hi Team. I deploy Microsoft Information Protection with sensitivity labels. After create labels, in both, Office clients and Web, show error: Information Rights Management not configured. For configure IRM, sign in Office, create message or document protected by IRM existing (Attach message in spanish). Trobleshooting: Migrate service Azure Information Protection to Microsoft Information Protection. Delete all labels migrated from AIP to MIP. Create new labels in MIP. Test in Word, Outlook client. Test in Word, Outlook web. Ideas for troubleshooting? Thanks,Impact of Deleting old Label in Compliance Portal
Hi All, I wanted a help to understanding the impact of deleting old label/labels which are not using as of now. However, those labels might be used in previously and because of that I need to understand is there any impact of Data loss. as of now we have too many labels in our environment and purpose is reducing the number of labels. appreciate the help. Thanks, Dilan
