ImprovMX vs Rackspace Email

Rackspace Email is used by more websites in our catalog: 867 use ImprovMX and 7,491 use Rackspace Email.

ImprovMX sites have the higher median Ahrefs Domain Rating (ImprovMX: 23, Rackspace Email: 21).

Between 2026-06 and 2026-07, ImprovMX went from 0.12% to 0.10% of all tracked sites, while Rackspace Email went from 0.88% to 0.85%. ImprovMX is gaining ground faster in our index.

No. A site runs a single email host, so ImprovMX 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.