Rob Walton is the owner, and lead consultant, of office365migrate.com.
30+ years experience in email & cloud technologies | 50+ organisations safely migrated to M365 | Exchange, Tenant-Tenant, GoDaddy, IMAP, Google, GroupWise | Global remote delivery.
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When starting out on your Office 365 migration project, reduce the risk of it going wrong. Hire a true Office 365 migration expert to help you navigate the many pitfalls you can encounter. No M365 migration project is the same, and you cannot plan, or predict, for all events. By hiring an O365 migration expert, you will be able to react quickly to the unforeseen events that will occur – and that will lead to a successful project.
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Still using Exchange 2016/2019 in hybrid mode? Microsoft ended support for Exchange 2016 & 2019 versions in October 2025. I can help you prepare for Exchange SE (Subscription Edition).
Q: Why do I need an “Office365 migration services expert” for my migration project?
A: Office365 migration project can go badly wrong if you do not use an expert. An expert is someone who has done the work many times before. Also providing guidance to ensure minimal mistakes are made.
Q: How experienced is Rob Walton as a Microsoft 365 migration consultant?
A: Rob Walton has over 30 years’ experience working with enterprise email, identity and cloud technologies and has successfully migrated more than 50 organisations to Microsoft 365. His migration experience includes Exchange, tenant-to-tenant, Google Workspace, GoDaddy, IMAP and GroupWise environments.
Q: Which countries do you cover for Office 365 migration expert services?
A: I cover all countries remotely, and can arrange for onsite on request.
Q: Do you cover SharePoint migrations?
A: Yes, I cover SharePoint migrations from SharePoint on-premise to SharePoint Online, and also Tenant to Tenant SharePoint migrations.
Migrating to Microsoft 365 involves far more than simply moving email from one system to another. An experienced O365 migration expert helps reduce the technical and business risks associated with migration while ensuring that users can continue working throughout the transition.
A successful migration begins with understanding the existing environment, including mailboxes, domains, identities, permissions, applications and email routing. Particular attention must be given to Microsoft Entra ID identity configuration, user matching and licensing to prevent duplicate accounts, authentication problems and inaccessible mailboxes.
During staged or larger migrations, coexistence may also be required so users on the old and new platforms can continue exchanging email while migration batches are completed. DNS and mail-flow planning are critical at this stage. MX records, Autodiscover, SPF, DKIM and DMARC must be coordinated with Microsoft 365 and any existing email gateways or third-party services.
Selecting and configuring the correct migration tooling is equally important. Depending on the source environment and migration requirements, tools such as Microsoft migration services, BitTitan MigrationWiz or Quest can be used to migrate email and other data while maintaining integrity and providing migration reporting.
The final cutover should be carefully planned, with pre-migration testing, documented change procedures and a practical rollback strategy if unexpected problems occur. DNS changes, final synchronisation and mail-flow testing should be coordinated to minimise disruption and avoid lost or misdirected email.
Migration does not end when the final mailbox is moved. Post-migration security should include verification of SPF, DKIM and DMARC, MFA and Conditional Access, administrative permissions, external forwarding, mail-flow rules and Microsoft 365 security settings.
Hiring an experienced O365 migration expert provides an independent technical resource who can plan the migration, anticipate problems, troubleshoot issues quickly and ensure the new Microsoft 365 environment is both operational and secure from day one.
Microsoft 365 tenant-to-tenant migrations are commonly required following a merger, acquisition, divestiture or organisational restructure. Unlike a standard mailbox migration, a tenant migration can involve Exchange Online, Microsoft Teams, SharePoint Online, OneDrive, Entra ID identities and the transfer of one or more public email domains.
I provide specialist Microsoft 365 tenant-to-tenant migration consulting covering migration architecture, identity planning, coexistence, domain migration, mail flow, DNS, migration tooling and cutover. Depending on the environment, migration solutions may include Quest On Demand Migration, BitTitan MigrationWiz or Microsoft migration technologies.
Particular attention is given to Exchange Online mail flow, SMTP services, aliases, shared mailboxes, distribution groups, SPF/DKIM/DMARC and applications that send email through Microsoft 365. The migration is tested before production cutover, with rollback and post-migration validation incorporated into the migration plan.
Whether you are separating part of an organisation or consolidating multiple Microsoft 365 tenants, experienced migration planning can substantially reduce disruption and migration risk.
A common migration scenario we are asked to help with is from GoDaddy hosted Office 365 migrating to a new clean Office 365 Tenant. GoDaddy have lots of customers, and many of them use their Read more
We often get asked to help with email forensic expert work during an email migration project. Senior leadership may require a discrete email forensic investigation carried out. The other common request related to email forensic Read more
As we close off 2024 it is a good time to remind ourselves when Exchange 2016 and Exchange 2019 support ends. Microsoft have a date of October 14th 2025 for support ending for both Exchange Read more
If you are running Exchange 2019 in your environment, including as part of an Exchange Hybrid setup, then you should be running the latest Exchange 2019 CU14 update. Exchange 2019 CU14 provides a number of Read more
TLS 1.3 was introduced back in August 2018. However, Exchange 2019 and Exchange Online do not currently support it. Windows 2022 has introduced support for TLS 1.3, but Exchange 2019 does not support it, so Read more