Peterhouse Capital is a UK based financial services firm specialising in corporate finance and advisory services. The organisation relies on Microsoft 365 to support secure email communication and day to day operations. As part of ongoing improvements, the business required updates to its domain and user email configuration to support new branding requirements.
Peterhouse Capital required the introduction of a new domain, reflx.uk, within its existing Microsoft 365 environment. The goal was to enable a small group of users to utilise the new domain for email communication, while continuing to retain access to their existing accounts.
This required careful configuration to avoid disruption to current services and ensure coexistence between domains. It was important that the new setup aligned with the organisation’s operational needs and user expectations, particularly as the new domain was not intended to fully replace the existing primary domain.
Additionally, the organisation needed assurance that domain setup, DNS configuration and email provisioning were completed correctly, allowing users to begin using the new domain without impacting existing workflows.
We implemented a structured approach to introduce the new domain reflx.uk into the existing Microsoft 365 tenant. The domain was first purchased through a trusted registrar and prepared for integration.
We then configured the domain within the Microsoft 365 environment, ensuring all required DNS records were created, validated and correctly aligned to support Exchange Online services. This step was critical to ensure mail flow and service functionality operated as expected.
Following successful domain verification, seven new user accounts were provisioned and assigned Exchange Online Plan 1 licences. These accounts were configured to use the reflx.uk domain for email communication.
Importantly, the solution was designed to complement the existing setup rather than replace it. Users retained access to their original accounts, with the new domain accounts operating alongside them. This approach ensured continuity of service while allowing the organisation to introduce the new domain in a controlled and flexible manner.
All configuration decisions were implemented in line with agreed requirements, ensuring the solution met the organisation’s expectations and was delivered without disruption.
Peterhouse Capital successfully introduced the reflx.uk domain into its Microsoft 365 environment, enabling the organisation to expand its email capabilities without impacting existing services.
The new domain is fully operational, with all DNS records correctly configured to support secure and reliable email delivery. Users are now able to utilise their reflx.uk email accounts alongside their existing accounts, providing greater flexibility in how communication is managed.
By maintaining both sets of accounts, the organisation benefits from a smooth transition and avoids disruption to established workflows. This approach also allows for future scalability, should the business choose to expand use of the new domain.
The implementation was completed efficiently, with all services validated and functioning as expected. The organisation now has a stable and flexible email configuration that supports both current and future requirements.
