Transitioning UM Email Security Post-SURF Mailfilter

A transition plan is outlined as support for SURF Mailfilter ends by March 2026, emphasising secure e-mail flow. Short-term measures involve EOP setup with FOX-IT, while the medium-term focuses on governance and improving Secure Score. Implementation principles include standard Microsoft settings and user guidance on SPAM management. Rollout planning spans stakeholder briefings in February 2026, migration in March, and effect monitoring in April.