Greenhouse email provider statistics and deliverability context
← Email Stats homesaas
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), Greenhouse is the SaaS sender for 606 domains — 0.10% of 629,828 SPF-publishing domains. Its share has been stable over the last 30 days. Its strongest TLD is .com (72.1% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-12 DNS snapshot.
What Greenhouse represents in this dataset
Greenhouse — applicant tracking system widely used by mid-market and enterprise recruiters in North America.
Directory category: Saas. The classification comes from include: mechanisms in the SPF record. It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
What the 2026-09-12 snapshot shows about Greenhouse
Across 50 distinct TLDs its top three are .com (72.1%), .org (5.6%), .io (5.3%) — together 83.0% of the 606 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Google Workspace (Mailbox, 372 domains, 61.4% of them), followed by Microsoft 365 (22.3%). Its share of SPF-publishing domains has not moved measurably in 30 days. Directly comparable by the same detection rule: Shopify, Pardot (Salesforce), CodeTwo Email Signatures 365. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-12); a domain appears here when its published records match the include: mechanisms in the SPF record rule, which is an infrastructure fact, not a commercial relationship.
Commonly used together with Greenhouse
What else the same 606 domains use — cross-tabulated from the same daily snapshot (2026-09-12).
| Type | Service | Domains | Share of Greenhouse users |
|---|---|---|---|
| Mailbox | Google Workspace | 372 | 61.4% |
| Mailbox | Microsoft 365 | 135 | 22.3% |
| Mailbox | Proofpoint | 36 | 5.9% |
| Mailbox | Mimecast | 30 | 5.0% |
| Mailbox | Sophos MXrecord | 5 | 0.8% |
| Mailbox | Proofpoint Essentials | 5 | 0.8% |
TLD distribution (top 30 of 50)
Frequently asked questions
How many domains use Greenhouse?
606 domains in the Tranco top-1M use Greenhouse as their SaaS sender as of September 12, 2026, according to Live Direct Marketing's daily DNS scan.
What is Greenhouse's market share?
Greenhouse holds 0.10% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-12). The number is recomputed every day.
Is Greenhouse growing or declining?
Greenhouse's share has been stable over the last 30 days (±0.01 pp).
What are the biggest alternatives to Greenhouse?
The largest SaaS senders in the same category by Tranco top-1M share are: Shopify, Pardot (Salesforce), CodeTwo Email Signatures 365, KnowBe4, Statuspage (Atlassian) (as of 2026-09-12).
Largest SaaS senders in this category
Shopify (0.86%) · Pardot (Salesforce) (0.74%) · CodeTwo Email Signatures 365 (0.70%) · KnowBe4 (0.53%) · Statuspage (Atlassian) (0.32%) · Trustpilot (0.29%) · Firebase (Google) (0.29%) · BigCommerce (0.28%) · Atlassian (Jira/Confluence) (0.28%) · Lark / Feishu (0.20%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 606 domains.