ADP email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 14, 2026), ADP is the SaaS sender for 113 domains — 0.02% of 637,677 SPF-publishing domains. Its strongest TLD is .com (77.9% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-14 DNS snapshot.
What ADP represents in this dataset
ADP — payroll and HR platform.
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 2026-09-14 snapshot shows about ADP
Across 10 distinct TLDs its top three are .com (77.9%), .org (8.8%), .com.au (3.5%) — together 90.3% of the 113 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 Microsoft 365 (Mailbox, 51 domains, 45.1% of them), followed by Proofpoint (22.1%). 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 (2026-09-14); 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 ADP
What else the same 113 domains use — cross-tabulated from the same daily snapshot (2026-09-14).
| Type | Service | Domains | Share of ADP users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 51 | 45.1% |
| Mailbox | Proofpoint | 25 | 22.1% |
| Mailbox | Google Workspace | 11 | 9.7% |
| Mailbox | Mimecast | 10 | 8.8% |
| Mailbox | Self-Hosted | 3 | 2.7% |
| Mailbox | Cisco IronPort | 3 | 2.7% |
TLD distribution (top 10 of 10)
Frequently asked questions
How many domains use ADP?
113 domains in the Tranco top-1M use ADP as their SaaS sender as of September 14, 2026, according to Live Direct Marketing's daily DNS scan.
What is ADP's market share?
ADP holds 0.02% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-14). The number is recomputed every day.
What are the biggest alternatives to ADP?
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 2026-09-14).
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 113 domains.