office365.us vs Rackspace Email

Rackspace Email is used by more websites in our catalog: 119 use office365.us and 7,491 use Rackspace Email.

office365.us sites have the higher median Ahrefs Domain Rating (office365.us: 50, Rackspace Email: 21).

Between 2026-06 and 2026-07, office365.us went from 0.02% to 0.01% of all tracked sites, while Rackspace Email went from 0.88% to 0.85%. office365.us is gaining ground faster in our index.

No. A site runs a single email host, so office365.us and Rackspace Email are mutually exclusive.

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.