Exchange Online Consultant for UK Businesses
EJK Consultancy helps UK businesses with Exchange Online configuration, mail flow, shared mailboxes and email security. If you are still on Exchange Server, see our Exchange to Microsoft 365 migration service.
Exchange Online is often treated as finished once mailboxes have been moved. In practice, mail flow, connectors, transport rules, shared mailbox permissions, DNS and hybrid remnants still need attention. Those details are usually what cause the next outage.
A connector stops working. Send As disappears after a licence change. DMARC fails a customer check. The old Exchange server is switched off and recipient management falls over.
EJK Consultancy works on those issues directly, whether that is a cleanup of an existing tenant or a migration that still needs proper planning.
Planning a move from Exchange Server? Start with the Exchange to Microsoft 365 migration service or the Exchange migration checklist.
Core Exchange Online Services
Practical messaging work for tenants that are already in Microsoft 365, and for those still moving.
Mail Flow Review
Reviewing inbound and outbound paths, accepted domains, connectors, transport rules and SMTP relays used by scanners and line-of-business applications.
Mailbox Configuration
Shared, room and equipment mailboxes, delegation, Send As, archives, litigation hold and public folder decisions.
Email Security
Anti-phishing policies, spoof intelligence, SPF, DKIM and DMARC, and the user-reported message path.
Hybrid and On-Premises Remnants
Deciding whether an Exchange server is still required for recipient management, and retiring it safely if it is not.
Migrations and Cutovers
Exchange Server, hosted Exchange and IMAP into Exchange Online, including discovery, batches, DNS and Outlook profile changes.
Ongoing Messaging Support
Mail flow changes, connector work and the issues that sit outside a standard support ticket.
Common Exchange Online Issues We Resolve
Problems that usually appear after the original migration is long forgotten.
Related Microsoft 365 Work
Exchange Online rarely sits on its own.
Related work includes Microsoft 365 tenant setup, Conditional Access and security and tenant-to-tenant migrations.
Frequently Asked Questions
Common questions about Exchange Online consultancy.
If Exchange Online needs a proper review, start with a conversation.
Tell us what is breaking, or what you are planning to move. We will tell you whether this is a short cleanup, a migration, or something your current provider can finish with a clearer brief.