Rackspace Email vs stableserver.net

Rackspace Email is used by more websites in our catalog: 7,491 use Rackspace Email and 220 use stableserver.net.

Rackspace Email sites have the higher median Ahrefs Domain Rating (Rackspace Email: 21, stableserver.net: 14).

Between 2026-06 and 2026-07, Rackspace Email went from 0.88% to 0.85% of all tracked sites, while stableserver.net went from 0.03% to 0.02%. stableserver.net is gaining ground faster in our index.

No. A site runs a single email host, so Rackspace Email and stableserver.net 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.