What is the best alternative to opalstack.com?

By number of websites, the most widely used alternatives to opalstack.com are Google Workspace, Microsoft 365, mailspamprotection.com, GoDaddy Email, Zoho Mail. The right one depends on your needs; compare them on adoption, authority, and audience above.

How many alternatives to opalstack.com are there?

Site Stats Database tracks 162 other email hosting providers used by 100 or more websites, plus a long tail of rarer ones. opalstack.com itself is used by 112 websites.

Which email host has the most websites?

Google Workspace leads this category with 230,262 websites in our catalog.

Where does this data come from?

Adoption is counted from Site Stats Database's own crawl; authority (Ahrefs Domain Rating) and traffic come from Ahrefs and DataForSEO. Everything reflects the sites we track and refreshes at least monthly.

opalstack.com Alternatives & Competitors

Last updated July 1, 2026 · refreshes automatically as new data lands.

Looking for an alternative to opalstack.com? Site Stats Database tracks 162 other email hosting providers; the top ones are below, ranked by adoption, with authority and traffic for each and the leading sites that use them. opalstack.com itself is used by 112 websites. Back to opalstack.com.

Email Host	Websites	Share	Median DR	Median traffic	Compare

opalstack.com Alternatives & Competitors

The top opalstack.com alternatives in depth

Google Workspace

Microsoft 365

mailspamprotection.com

GoDaddy Email

Zoho Mail

ppe-hosted.com

Hostinger Email

Mimecast

Proofpoint

hostedemail.com

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