HDEMS email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), HDEMS is the email service provider (ESP) for 517 domains — 0.08% of 637,420 SPF-publishing domains. Its strongest TLD is .co.jp (60.3% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-24 DNS snapshot.
What HDEMS represents in this dataset
HDEMS — outsourced email marketing operations.
Directory category: Esp. 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 2026-09-24 snapshot shows about HDEMS
Across 15 distinct TLDs its top three are .co.jp (60.3%), .com (15.7%), .jp (14.1%) — together 90.1% of the 517 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, 264 domains, 51.1% of them), followed by Google Workspace (32.5%). Directly comparable by the same detection rule: Amazon SES, SendGrid (Twilio), Mailgun. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-24); 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 HDEMS
What else the same 517 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of HDEMS users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 264 | 51.1% |
| Mailbox | Google Workspace | 168 | 32.5% |
| Mailbox | Trend Micro | 18 | 3.5% |
| Mailbox | Symantec MessageLabs | 14 | 2.7% |
| Mailbox | SecureMX (JP) | 14 | 2.7% |
| Mailbox | Proofpoint | 12 | 2.3% |
| ESP | Amazon SES | 89 | 17.2% |
| ESP | Salesforce | 76 | 14.7% |
| ESP | Repica WebCAS | 46 | 8.9% |
| ESP | CrmStyle | 32 | 6.2% |
TLD distribution (top 15 of 15)
Frequently asked questions
How many domains use HDEMS?
517 domains in the Tranco top-1M use HDEMS as their email service provider (ESP) as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is HDEMS's market share?
HDEMS holds 0.08% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to HDEMS?
The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-09-24).
Largest email service provider (ESP)s in this category
Amazon SES (6.23%) · SendGrid (Twilio) (4.68%) · Mailgun (4.01%) · Zendesk (3.77%) · Mailchimp (3.61%) · Mandrill (3.26%) · HubSpot (3.18%) · Salesforce (2.57%) · Mailjet (Sinch) (2.14%) · Cloudflare Email Routing (1.96%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 517 domains.