Email Migration with Hostbros.
Everything below is set up for you — not left as a checklist in an admin console.
Pre-migration audit
Mailbox sizes, aliases, shared mailboxes and forwarding rules mapped before anything moves.
Pre-copy
Historical mail copied while your old system keeps running.
Planned cutover
MX records switched at a low-traffic time with short DNS TTLs.
Delta sync
Anything that arrived during propagation is copied across afterwards.
Email authentication
SPF, DKIM and DMARC updated for the new provider.
User support
Help reconnecting phones and Outlook, and a short guide for your team.
Three steps, one team.
A founder runs every onboarding. You get a checklist, a go-live date and a person to call.
- 1
Map the mailboxes
We list every user, alias, shared mailbox and forwarding rule.
- 2
Copy & cut over
Historical data is pre-copied, then MX records switch at an agreed time.
- 3
Sync & tidy up
Final sync, device reconnection and old-system decommissioning.
Who it’s for
- Businesses leaving cPanel or ISP email
- Companies switching between Microsoft 365 and Google Workspace
- Organizations retiring an on-premises Exchange server
- Mergers consolidating two email domains
Email Migration questions, answered.
Don’t see yours? Email [email protected] — a person replies the same day.
Will we lose email during the migration?
No. Mail keeps flowing to the old system until MX records change, and a final sync copies anything delivered during DNS propagation to the new mailboxes.
How long does an email migration take?
Small businesses usually migrate within one to two weeks, including planning. Large mailboxes take longer to pre-copy, but users keep working throughout.
Can calendars and contacts be migrated too?
Yes, when migrating from Exchange, Microsoft 365 or Google Workspace. Plain IMAP sources only hold email, so calendars and contacts are exported and imported separately.
Can you migrate from Google Workspace to Microsoft 365, or the reverse?
Yes. We migrate in both directions, including mail, calendars, contacts and files where the platforms support it.
Do users need to do anything during the migration?
Very little. Users sign in to the new account and reconnect their phone and desktop mail app; we provide step-by-step instructions and help.
Often paired with Email Migration.
One account, one invoice, one support team for all of it.
Google Workspace
Professional Gmail, Drive, Meet and Docs on your own domain.
Learn moreMicrosoft 365
Word, Excel, Outlook, Teams and Exchange email on your domain.
Learn moreDomains & DNS
Register or transfer your domains, then run them on premium Anycast DNS with DNSSEC and DDoS protection.
Learn moreGet a quote in one 15-minute call.
Tell me what you have and what you need. I’ll quote it, set it up, and tell you what you can cancel. No obligation.
Cédric Desfossés · Co-founder, Hostbros Network