New City Microsoft 365 migration services

Some New City firms still run their own Exchange server in a closet, installed years ago and kept alive by whoever remembers how. Microsoft ended support for Exchange Server 2016 and 2019 in October 2025, which means no more security fixes for software that sits directly on the internet. Moving to Microsoft 365 solves that and brings modern protections such as multi-factor sign-in and advanced threat filtering. The tricky part is usually the history. Firms have years of mail, local archive files on individual computers, and shared folders organized by client and matter. BizTechPro maps all of it, migrates it in stages, and verifies that the old and new systems match before switching off anything.

Permissions deserve special care. We rebuild client and matter folders in SharePoint so only the right people can open them, and we document who has access so partners can review it. Sharing settings are tightened so files cannot be sent to outside addresses without a deliberate choice, and multi-factor sign-in is required from the first day. We also plan the cutover around the court calendar, avoiding the days your office is busiest, and keep the old system readable for a set period in case anyone needs to confirm something was moved. Staff get a short guide to the new layout.

Licensing & setup

The right Microsoft 365 plan for each person, reviewed as your team changes, so you aren’t paying premium prices for users who only need email and the Office apps.

Email & Teams

Mailboxes, shared inboxes, shared calendars, and Teams channels organized around your departments and projects, so conversations and meetings have a clear home.

SharePoint & OneDrive

File storage structured by department or client, with permissions that control who can see what, and personal OneDrive folders for work that’s still in progress.

Security configuration

Multi-factor authentication, conditional access, and threat protection turned on and tuned, since many of the most useful protections need configuring rather than leaving at their defaults.

Migrations

Email, calendars, contacts, and files moved from Google Workspace, older Exchange servers, or other providers, with the cutover planned so nothing is left behind and mail keeps flowing.

Account review & cleanup

For an existing Microsoft 365 account, a review of licenses, sharing settings, admin access, and old user accounts, followed by fixes for every gap we find.

User support

Help for your team with everyday questions, from a shared calendar that won’t sync to a Teams meeting that won’t start or a file that seems to have disappeared.

Do we need to migrate off our Exchange server now that support has ended?

Yes, you should. Microsoft ended support for Exchange Server 2016 and 2019 in October 2025, so those servers no longer receive security updates. BizTechPro migrates New City offices from on-premises Exchange to Microsoft 365, keeping mail history, calendars, and contacts, and retires the old server safely.

Can archived email files on our computers be moved into Microsoft 365?

Yes. Many firms have years of mail stored in local archive files on individual computers, where it is easy to lose. BizTechPro locates those files during the migration and imports them into each person’s Microsoft 365 mailbox or online archive, so old correspondence becomes searchable and backed up.

How do you keep client folders private in SharePoint?

BizTechPro designs SharePoint libraries around your existing structure, such as one area per client or practice group, and assigns access by role rather than by individual file. New City firms receive a written list of who can reach what, which makes access reviews simple and supports confidentiality obligations.