Rob Walton is originally from the United Kingdom but is now resident in New Zealand. Rob has worked with email messaging technologies for over 30 years, via multiple enterprise email migration projects.
Following a Bachelors Degree in Computer Science in the United Kingdom, Rob has worked across most industry sectors as a freelance email systems expert. Example sectors: banking, insurance, law enforcement, retail, non-profit, and government. These various organizations have been in the UK, Netherlands, USA, Australia, and New Zealand.

In addition, the author provides Microsoft Office 365, and email security advice to several overseas organizations. This work has also seen the author transition over fifty businesses to the Microsoft Office 365 cloud computing platform.
In 2025, Rob is actively working for clients in Asia Pacific, and the USA.
Rob Walton Email Expert | SMTP Knowledge
The author has worked with all the Microsoft email product offerings, since their first product, Microsoft Mail, was launched back in the 1990’s. Subsequent email product expertise has been gained in all their email information system products since then, including, Microsoft Exchange versions (2000-2019/SE), Office 365 Exchange Online.
Email technologies used are: Microsoft Mail, Microsoft Exchange Server , Google GSuite, Google Workspace, Novell GroupWise, Lotus Notes, Microsoft Exchange Online, Microsoft Purview, Barracuda, Mail Marshall, ProofPoint, DMARC, DKIM, SPF, DANE, MTA-STS, SMTP.
The email products may change over time, but the mechanics of the SMTP email transport protocol have not changed significantly.
Rob is experienced in legal matters related to expert witness testimony in the field of email forensics, and especially in SMTP email transport, and email systems.
Rob also has complementary expertise in related collaboration and identity technologies associated to email services. Examples are Active Directory, Azure, Microsoft 365, and cyber security.
Summary of Email Expertise
Through his work Rob has deep knowledge of the SMTP email protocol, and how this can be used to provide compelling expert witness services for court cases. Rob has helped prepare for both prosecution and defense cases, including time in court in the expert witness capacity.
Having founded both emailmigrations.com and office365migrate.com, Rob Walton has proven experience in the email messaging field.
Contact Rob Walton if you need an independent email forensics expert who also has expert witness expertise. When you hire Rob you are hiring an individual, not a company.