Robert W.

Are you dealing with Microsoft 365 security vulnerabilities, email delivery failures, a complex Exchange migration, or a suspected email compromise? I help organisations diagnose, secure and improve Microsoft 365 environments, drawing on over 25 years of enterprise messaging, cloud infrastructure and cybersecurity experience. I am a New Zealand-based independent consultant working with clients across the United States, United Kingdom, Australia and New Zealand. My specialist services include: #Microsoft 365 Security & Architecture - Microsoft 365 security assessments and remediation - Entra ID, Conditional Access, MFA and identity security - Microsoft Defender for Office 365, Defender XDR and endpoint security - Microsoft Purview DLP, sensitivity labels, retention and eDiscovery - Zero Trust architecture, security governance and incident response #Exchange Online & Email Security - Exchange Online architecture, migrations and hybrid environments - Email delivery troubleshooting and Microsoft 365 mail flow - SPF, DKIM, DMARC, MTA-STS and email authentication - Proofpoint, Mimecast and third-party email security integration - Business Email Compromise investigations and remediation - Mailbox permissions, forwarding, transport rules and PowerShell automation #Microsoft 365 Migrations - Tenant-to-tenant Microsoft 365 migrations - Google Workspace to Microsoft 365 migrations - Exchange Server to Exchange Online migrations - Migration planning, technical implementation and troubleshooting #Digital Forensics & Expert Witness - Email authenticity and header analysis - EML, MSG, PST and mailbox forensic examinations - Investigation of disputed or potentially manipulated emails - Independent forensic reports and expert witness support My background includes Microsoft 365 security and cloud transformation work for New Zealand government organisations, including the Ministry of Foreign Affairs and Trade, and security consulting engagements involving US organisations such as The Trust for Public Land and The Asia Foundation. I hold a BSc (Hons) in Computer Science and have extensive hands-on experience delivering enterprise messaging, identity and security solutions. I focus on identifying the underlying technical problem, explaining the findings clearly and delivering practical solutions. I am comfortable taking ownership of complex technical issues, working independently, and providing clear documentation and recommendations. Whether you need a focused security assessment, an Exchange Online troubleshooting specialist, or an experienced Microsoft 365 consultant for an ongoing engagement, I can help.