Changing or rebuilding a website does not inherently mean your business email has to change. Website hosting and email hosting can be completely separate services, even when they use the same domain name.
Website hosting and email hosting can be separate
A plumbing business may have its website hosted with one provider while info@businessname.co.uk is handled by Microsoft 365 or Google Workspace. Replacing the website does not automatically require moving those mailboxes.
How can DNS changes affect email?
Email services rely on DNS records such as MX records and, depending on the service, additional records used for verification and email security. If those records are changed or removed incorrectly, email delivery can be interrupted.
This is why Toolbelt Websites treats the existing DNS configuration as more than just website settings.
Why do nameserver changes need extra care?
Changing nameservers can move responsibility for the entire DNS zone to a different service. If the new DNS zone does not contain the records required by the existing email provider, email can stop working even though the website itself is configured correctly.
If a nameserver change has been requested, read what nameservers are and how to change nameservers safely.
Important: do not assume a successful website change proves email is protected. Website and email DNS records can be separate.
What should I tell Toolbelt Websites before launch?
Tell Toolbelt Websites about the business email services currently in use, particularly if you know they are provided by Microsoft 365, Google Workspace or another specialist email provider. If you are unsure, share what you know rather than changing email settings yourself.
There is always some operational risk when important DNS settings are changed, so no responsible provider should promise that arbitrary DNS changes are risk-free. Careful review and preserving required records reduces that risk.
Last updated: 8 September 2026