Email Migration

How to Migrate Sherweb Exchange 2019 Email to Microsoft 365

Camila Milosovich Oct 1, 2026 869 views

Question details

A business needs to migrate 17 hosted Exchange 2019 mailboxes from Sherweb to Microsoft 365 Business Standard.

How to Migrate Exchange 2019 Email from Sherweb to Microsoft 365

Product: Microsoft Exchange 2019 / Microsoft 365
Device & OS: not provided
Scenario: Planning and executing an email migration from a third-party hosted Exchange environment to a native Microsoft 365 tenant.
Observed behavior: The migration requires careful identity setup, DNS modification, mailbox data transfer, and post-migration validation for a smooth transition.

Before you start

Gather your domain registrar credentials, create an exact inventory of all 17 mailboxes, and ensure you have global admin access to your new Microsoft 365 tenant.

Solution 1Recommended

Use Microsoft FastTrack and Exchange Admin Center Tools

Utilize Microsoft's official migration documentation and FastTrack planning resources for a secure, organized transition to Microsoft 365.

Migrating an Exchange environment involves mapping identities, setting up migration endpoints, and executing a cutover or staged migration batch. Microsoft provides built-in tools to handle this efficiently.

Review Microsoft FastTrack Guides

Log in to the Microsoft FastTrack portal using your Microsoft 365 admin account. Navigate to the deployment guides to generate a customized planning checklist for your Exchange migration.

Prepare Microsoft 365 Tenant

Log in to the Microsoft 365 Admin Center. Go to 'Settings' > 'Domains' and click 'Add domain' to verify ownership of the email domain currently hosted with Sherweb.

Configure the Migration Endpoint

Open the Exchange Admin Center (EAC). Navigate to 'Migration' > 'Endpoints' and click the '+' icon to create a new Exchange Server endpoint using your Sherweb administrator credentials.

Run the Mailbox Migration Batch

In the EAC, go to 'Migration' > 'Migration batches'. Click 'New migration batch' and select 'Migrate to Exchange Online'. Follow the wizard to map your 17 mailboxes and start the initial data sync.

Update DNS MX Records

Once the initial sync reaches 100%, log in to your DNS hosting provider. Update your MX records to point to Microsoft 365 (e.g., yourdomain-com.mail.protection.outlook.com) to route incoming emails to the new environment.

Use Microsoft FastTrack and Exchange Admin Center Tools

FastTrack Eligibility: While dedicated FastTrack engineers are typically reserved for larger setups (150+ seats), the self-serve planning resources and documentation available in the portal are free and highly recommended for your 17-mailbox migration.

Solution 2

Consult Microsoft Q&A for Hosted Environment Nuances

Since Sherweb is a specialized hosted environment, you may encounter unique technical roadblocks where community expert advice is crucial.

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Enhance Your New Setup with WPS Office

After successfully migrating your email infrastructure to Microsoft 365, you can equip your team with WPS Office. It serves as a highly compatible, cost-effective alternative for daily document creation and spreadsheet management.

1. Download and Install: Visit the official WPS Office website and download the free installer for your operating system.
2. Sign In: Create a free WPS account or sign in with your email to unlock advanced features and cloud syncing capabilities.
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Highly compatible with Microsoft Office formats like .docx, .xlsx, and .pptxLightweight suite that installs quickly and saves system resourcesFamiliar user interface requiring zero learning curve for users migrating from older Office versionsCost-effective solution compared to full desktop subscription plans

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Frequently Asked Questions

Can I migrate Exchange 2019 mailboxes to Microsoft 365 directly?

Yes, Microsoft provides built-in tools like the Exchange Admin Center (EAC) to perform direct cutover, staged, or hybrid migrations from an Exchange 2019 server directly to Microsoft 365.

Will migrating emails from a hosted provider like Sherweb cause downtime?

With proper planning and DNS TTL (Time to Live) adjustments, the migration can be done with near-zero downtime. Users will simply start receiving new emails in their Microsoft 365 inboxes once the MX records are updated.

Is Microsoft FastTrack free to use for small migrations?

Microsoft FastTrack assistance from engineers is generally available at no additional cost for customers with 150+ seats, but smaller organizations can still access its extensive self-serve documentation and customized deployment guides for free.

Migration & Recovery