Google → Microsoft 365 migration
Email, files, contacts and calendars moved with zero downtime and nothing lost.
Learn about migration →Microsoft 365 · Richmond Hill & GTA
Microsoft 365 for small businesses, done right.
From a clean migration to ongoing management and email that actually reaches the inbox — we handle the whole Microsoft 365 stack so your team can just work.
In short
MainIT helps small businesses move to Microsoft 365, manage their tenant securely, and fix email deliverability. We cover migration, licensing, security, Exchange Online, Teams and SharePoint — all from one local expert in Richmond Hill, Ontario.
Last updated June 2026
Three ways we help
What our Microsoft 365 service covers
Tenant management
Users, licensing, security, backups and governance — kept tidy and secure.
Learn about management →Email deliverability
SPF, DKIM and DMARC set up and repaired so your email stops landing in spam.
Learn about deliverability →Why Microsoft 365
Why small businesses move to Microsoft 365
It is the most complete, best-value toolkit for a small team: business email, Office apps, Teams, secure file storage and device security in one subscription.
One subscription, everything in it
Outlook, Word, Excel, PowerPoint, Teams, OneDrive and SharePoint under a single per-user licence.
Security built for small teams
Multi-factor authentication, device management and threat protection without enterprise complexity.
Reliable business email
Exchange Online gives you a professional, well-protected mailbox on your own domain.
Room to grow with AI
Microsoft 365 is the foundation for Copilot and the AI tools we can roll out next.
Common questions
Frequently asked questions
Do I need to migrate before you can manage my Microsoft 365?
No. If you're already on Microsoft 365 we can take over management and security right away. If you're on Google Workspace or another provider, we'll migrate you first, then manage it.
Can you help with just one part, like email deliverability?
Yes. Each service stands on its own — many clients come to us purely for an SPF/DKIM/DMARC fix or a one-time migration, with no ongoing commitment.
What size of business is this for?
Microsoft 365 suits teams from about 3 to 50 people. That's our sweet spot, across the GTA and remotely across Canada and the US.
Do you resell the licences or do we buy them?
Either works. We can provision and manage licences for you, or guide you through buying them directly — whichever is simpler and cheaper for your situation.
Let's talk
Book a free consultation.
Tell us what's slowing your business down and we'll give you a straight answer on whether — and how — we can help. No cost, no pressure.