Home / Groups / Inc 5000 (2026) / IONOS Mail

IONOS Mail among the Inc 5000

IONOS Mail was detected on 9 of 4,888 crawled Inc 5000 company websites, a share of 0.2%.

Read from each domain's MX record, and for domains behind an email gateway from its SPF record, not from the homepage.

4,888 of 4,969 Inc 5000 domains returned a usable record and form the denominator. 4,814 were counted from a rendered homepage crawl on 4 September 2026, 74 from a plain fetch only, and 81 returned no usable record. Email hosting and email security are read from each domain's MX and SPF records, for the same domains. Company list: Inc 5000 2026 list. <5 means fewer than 5 crawled domains in that group. Rank 5 of the 5 Email Hosting tools published for this group.

Software used by the Inc 5000 · Email Hosting across all groups

<a href="https://installmap.com/groups/inc5000_2026/ionos-mail"><img src="https://installmap.com/badges/inc5000_2026/ionos-mail.svg" alt="IONOS Mail runs on 9 of 4,888 crawled Inc 5000 companies (0.2%)"></a>

[![IONOS Mail runs on 9 of 4,888 crawled Inc 5000 companies (0.2%)](https://installmap.com/badges/inc5000_2026/ionos-mail.svg)](https://installmap.com/groups/inc5000_2026/ionos-mail)

Other Email Hosting tools in this group

• Microsoft 365 46.2%
• Google Workspace 43.4%
• Zoho Mail 0.3%
• GoDaddy Email 0.2%
• Intermedia 0.1%
• Rackspace Email 0.1%