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Microsoft 365 administration guides

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2026-06-16How to offboard former employees in Microsoft 365 and preserve mailbox dataWhen an employee leaves, the goal is not simply to delete an account. A secure Microsoft 365 offboarding process must stop access quickly, preserve…Microsoft 365SecurityComplianceHow-to2026-10-11NewSharePoint Storage Limits: How the Tenant Pool Is Calculated, What Consumes It, and What to Do When It Runs OutHow the SharePoint tenant pool is calculated, what consumes it, safe cleanup, the Office 365 Extra File Storage add-on and Microsoft 365 Archive compared.SharePointOneDriveMicrosoft 365Cost2026-09-20NewMicrosoft 365 Groups vs Security Groups vs Distribution Lists vs Dynamic Groups: Which One for Which JobWhat each group type is for, where it is created, what it can be used in, and which object to pick for a SharePoint permission, a calendar or a license.Microsoft 365Entra IDAzure

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2026-10-11NewCommon Microsoft 365 Migration Challenges and How to Fix Each OneEight Microsoft 365 migration challenges and the number that decides each: the 150-mailbox cutover rule, 50 GB and 250 GB limits, the NCE 7-day window.MigrationMicrosoft 365Exchange OnlineSharePoint2026-10-11NewCopilot Oversharing: The Hidden Risk and How to Fix ItMicrosoft 365 Copilot exposes overshared SharePoint, Teams, OneDrive, guest and OAuth access. The checks, the remediation order, and what to monitor after.Copilot and AIPurviewSharePointSecurity2026-10-11NewExchange Server SE and EWS Retirement: Status After 1 October 2026EWS blocking in Exchange Online began 1 October 2026; removal is 1 April 2027. Exchange 2016 and 2019 ESU ends 31 October 2026. What to do now, in order.Exchange ServerExchange OnlineEnd of SupportMigration2026-10-11NewHow to Build an Intelligent Workplace with SharePoint in 2026Seven steps to a SharePoint intranet in Microsoft 365: hub topology, Viva Connections in Teams, Lists and approvals, governance, Copilot, and the cost.SharePointMicrosoft 365Copilot and AIPower Platform2026-10-11NewImprove Microsoft Secure Score Without Chasing PointsGet a practical Microsoft Secure Score remediation plan that prioritizes identity, email, endpoints, sharing, and Purview controls by risk.SecurityMicrosoft 365Entra IDExchange Online2026-10-11NewExchange Online Data Protection: The Settings That Matter in 2026Nine Exchange Online protection decisions in order: MFA, preset policies, DMARC, forwarding, DLP, encryption, retention, backup and monitoring.Exchange OnlineSecurityPurviewDefender2026-10-11Teams vs SharePoint vs OneDrive in 2026: When to Use Each Microsoft 365 ToolWhen to use Teams, SharePoint and OneDrive: where files actually live, how to govern sharing and mobile access, and what recovery each one gives you.Microsoft 365TeamsSharePointOneDrive2026-10-11NewMicrosoft 365 License Rules: Devices, Shared Mailboxes, Who Needs OneWho needs a Microsoft 365 license: 5 PCs, 5 tablets and 5 phones per user, shared mailboxes under 50 GB at $0, F1 $3.00, F3 $10.00, and a 60-person total.LicensingMicrosoft 365Cost2026-10-11NewMicrosoft 365 Migration Readiness Gate: 12 Checks Before You Cut OverA 12-check readiness gate for a Microsoft 365 migration: identity, domain, licenses at list price, mail method, file limits, devices, security and pilot.Microsoft 365MigrationExchange OnlineEntra ID2026-10-11NewMicrosoft Search Setup: Bookmarks, Acronyms, Connectors, CopilotWhere Microsoft Search runs after Bing retired, how to add bookmarks and acronyms, the 50 million-item connector quota, and what needs a Copilot license.Microsoft 365SharePointCopilot and AIHow-to2026-10-11NewNative Microsoft 365 Backup vs. Third-Party ToolsCompare Microsoft 365 Backup and third-party tools for recovery speed, retention, independent copies, Teams coverage, and cost.Microsoft 365Backup and RecoveryExchange OnlineSharePoint2026-10-11Microsoft 365 Phishing Attacks: 2026 Protection GuidePhishing is no longer just a suspicious email with a bad link. In Microsoft 365, attackers now target identities, tokens, Teams chats, SharePoint and…SecurityMicrosoft 365Exchange OnlineDefender2026-10-11NewSharePoint Sites and Portals: How to Build a Microsoft 365 IntranetBuild a Microsoft 365 intranet on SharePoint: site map, the 2,000-hub and 500-link limits, Viva Connections, governance and a six-week plan.SharePointMicrosoft 365AdoptionHow-to2026-10-11NewMicrosoft 365 Tenant-to-Tenant Migration: What Moves, What Does NotTenant-to-tenant migration workload by workload: Microsoft's native tools, the two one-time licenses, the 2,000-mailbox and 5 TB limits, what you rebuild.Microsoft 365MigrationExchange OnlineSharePoint2026-10-11NewThe Last Exchange Server: When a Hybrid Tenant Can Decommission On-Premises ExchangeWhen a hybrid Microsoft 365 tenant can remove its last Exchange server, what still needs one, recipient management without it, and Exchange SE licensing.Exchange ServerExchange OnlineMicrosoft 365End of Support2026-10-05NewDataverse capacity and pricing explained: database, file and log storage, the add-ons, and when a cleanup beats buying moreHow Dataverse capacity works: the tenant default, what each license adds, how to read the admin center page, what an overage blocks, and add-on prices per GB.Power PlatformLicensing2026-10-05NewExchange Hybrid Coexistence Between Independent Tenants: How It Works, the Limits, and the LicensingTwo Microsoft 365 tenants cannot form an Exchange hybrid. What coexists instead: free/busy, mail routing, address book, Teams, mailbox moves, and licensing.Exchange OnlineMigrationEntra IDMicrosoft 3652026-10-05NewExchange Online Plan 1 vs Plan 2 vs Kiosk vs Business Basic: The Mailbox DecisionExchange Online Kiosk, Plan 1, Plan 2 and Business Basic: October 2026 list prices, mailbox sizes, archive and hold, and whether Plan 1 includes Teams.Exchange OnlineLicensingMicrosoft 3652026-09-27NewDropbox or Box to SharePoint and OneDrive: The Migration Playbook for Sharing Links, Team Folders, External Collaborators and CutoverDropbox or Box to SharePoint and OneDrive: what Migration Manager moves and what it does not, team folder mapping, sharing links, guests, dual running, cutover.OneDriveSharePointMigrationMicrosoft 3652026-09-27NewExchange Server to Exchange Online: Cutover, Staged, Hybrid or Express? How to Pick the Migration Method for 25 to 500 MailboxesHow to choose cutover, staged, express or full hybrid for an Exchange Server to Exchange Online migration: mailbox limits, downtime, Outlook, public folders.Exchange OnlineMigrationExchange ServerMicrosoft 3652026-09-27NewFile Server to SharePoint and OneDrive: What to Move, What to Leave, and How Permissions Survive the TripMigrate a file server to SharePoint and OneDrive: inventory, share-to-site mapping, NTFS permission translation, path and sync limits, what stays on SMB, cost.SharePointOneDriveMigrationWindows Server2026-09-27NewIMAP Email Migration to Microsoft 365 from Rackspace, Zoho Mail, cPanel and GoDaddy Workspace Email: What IMAP Moves and What It Does NotIMAP migration to Microsoft 365 from Rackspace, Zoho, cPanel and GoDaddy Workspace Email: what moves, the limits, the MX cutover order, and the PST pass.Exchange OnlineMigrationMicrosoft 3652026-09-27NewMimecast or Proofpoint vs Defender for Office 365: Do You Still Need a Third-Party Email Security Gateway in 2026?Do you still need Mimecast or Proofpoint with Microsoft 365? What Defender Plan 1 and 2 cover, double filtering, archiving, continuity and the migration path.SecurityDefenderExchange OnlineMicrosoft 3652026-09-20NewChanging Your Company Email Domain in Microsoft 365 After a Rebrand: The Order of OperationsHow to change your Microsoft 365 email domain after a rebrand: verify, authenticate, swap addresses and UPNs in batches, keep the old domain as an alias.Microsoft 365Exchange OnlineEntra ID2026-09-20NewThe Domain Cutover in a Microsoft 365 Tenant-to-Tenant Migration: Why It Is the One Unavoidable Outage, and How an MX Spooler Keeps Mail FlowingWhy the domain cutover is the one unavoidable outage in a tenant-to-tenant migration, how long it lasts, and how an MX spooler holds inbound mail.MigrationExchange OnlineMicrosoft 3652026-09-20NewYour Archive Mailbox Is Almost Full: What to Check in Microsoft 365, and the Options When It Keeps GrowingWhere the archive mailbox almost full warning comes from, the retention and auto-expanding settings to check, and when the fix is Plan 2 or the add-on.Exchange OnlineLicensingMicrosoft 3652026-09-20NewRehiring a Former Employee in Microsoft 365: Restore the Old Account, Recreate It, or Start Fresh?Restore a soft-deleted user, convert a shared or inactive mailbox back, or start fresh: steps, licensing and security work for a Microsoft 365 rehire.Entra IDEnd of SupportMicrosoft 3652026-09-20NewWhat Happens to Microsoft 365 When Your Domain Registration Expires (and the Five Settings That Prevent It)What breaks in Microsoft 365 when a domain registration lapses, what keeps working, the re-registration risk, and the five settings that prevent it.Microsoft 365End of SupportSecurity2026-09-14NewSPF, DKIM and DMARC for Microsoft 365: The Setup Order, the Mistakes That Break Deliverability, and Defender for Office 365 Plan 1 vs Plan 2SPF, DKIM and DMARC for Microsoft 365 in the right order, the mistakes behind permerror and p=none forever, and what Defender for Office 365 P1 and P2 add.SecurityExchange OnlineDefender2026-06-16Adobe Acrobat Sign + Power Apps Integration for E-Signature AutomationModern Power Apps and Power Automate workflows can generate signature-ready documents from SharePoint, Dataverse, or Dynamics 365 data, send them through…Power PlatformSharePointSecurity2026-06-16Assigning roles in a Microsoft Teams meetingMicrosoft Teams meetings are easiest to manage when the right people have the right permissions. In 2026, Teams gives organizers more control than the…TeamsMicrosoft 365Copilot and AI2026-06-16Microsoft 365 Email Collaboration: Shared Mailboxes vs Distribution Lists vs Microsoft 365 GroupsMicrosoft 365 offers several ways for people to collaborate around email, calendars, files, and conversations. The right choice depends on whether you…Microsoft 365Exchange OnlineTeamsSharePoint2026-06-16Exchange Online Tenant-to-Tenant Migration Guide for 2026Moving Exchange Online mailboxes between Microsoft 365 tenants is no longer just an export-and-import project. A successful 2026 tenant-to-tenant…Microsoft 365Exchange OnlineMigrationEntra ID2026-06-16Microsoft Cloud Storage Options in 2026: OneDrive, SharePoint, Azure Blob, Azure Files, Queues, and TablesMicrosoft offers more than one kind of cloud storage. The right choice depends on whether you are storing user files, team documents, application data,…Microsoft 365OneDriveSharePointAzure2026-06-16How to Manage Email Signatures in Microsoft 365 and Exchange OnlineEmail signatures are still a small detail with a big impact: they reinforce your brand, provide consistent contact information, and can support legal or…Microsoft 365Exchange OnlineHow-toSecurity2026-06-16How to export a Microsoft 365 mailbox to PST using Microsoft PurviewNeed a PST copy of a Microsoft 365 mailbox for legal discovery, offboarding, migration, or a one-time archive? In 2026, the supported admin path is…How-toMicrosoft 365Exchange OnlineCompliance2026-06-16How to schedule a Microsoft Teams meeting on behalf of another user in OutlookExecutives often rely on assistants to manage their calendars. In Microsoft 365, a delegate can schedule a Microsoft Teams meeting from an executive’s…TeamsMicrosoft 365Exchange Online2026-06-16How to Send an Email as an Attachment in OutlookForwarding a message as an attachment is still the recommended way to share the original email for troubleshooting, phishing review, or mail-flow…How-toMicrosoft 365Exchange Online2026-06-16Microsoft Stream in 2026: Secure Video in Microsoft 365Microsoft Stream is still the video experience for Microsoft 365, but it is no longer the old standalone Stream Classic portal. Today, Stream is built on…Microsoft 365SharePointTeams2026-06-16Microsoft Teams meetings step by step: how to schedule, join, and run Teams calls in 2026Microsoft Teams meetings are now much more than audio, video, and screen sharing. In the new Teams experience, users can schedule meetings from Teams or…How-toTeamsMicrosoft 365Security2026-06-16Navigate SharePoint Online data governance, protection, and backup strategies in 2026SharePoint Online remains a core collaboration platform in Microsoft 365, but protecting it in 2026 requires more than permissions and a recycle bin. A…SharePointMicrosoft 365SecurityPurview2026-06-16OneDrive Tenant-to-Tenant Migration: 2026 Planning GuideMoving OneDrive data between Microsoft 365 tenants is no longer just a file copy project. In 2026, a successful OneDrive tenant-to-tenant migration…Microsoft 365OneDriveMigrationSecurity2026-06-16NewHow Law Firms Should Structure SharePoint for ComplianceLearn how law firms should structure SharePoint by matter to govern permissions, guest access, metadata, retention, labels, and audit evidence.Microsoft 365SharePointSecurityCompliance
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