APSIS email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), APSIS is the email service provider (ESP) for 375 domains — 0.06% of 637,420 SPF-publishing domains. Its strongest TLD is .se (41.3% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-24 DNS snapshot.
What APSIS represents in this dataset
APSIS — Swedish ESP, strong Nordic SMB presence.
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 APSIS
Across 24 distinct TLDs its top three are .se (41.3%), .com (21.3%), .dk (11.2%) — together 73.9% of the 375 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, 249 domains, 66.4% of them), followed by Google Workspace (12.5%). 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 APSIS
What else the same 375 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of APSIS users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 249 | 66.4% |
| Mailbox | Google Workspace | 47 | 12.5% |
| Mailbox | Self-Hosted | 14 | 3.7% |
| Mailbox | Unknown / Other | 12 | 3.2% |
| Mailbox | Proofpoint | 11 | 2.9% |
| Mailbox | Generic / unmatched (mx*.*) | 11 | 2.9% |
| ESP | Mandrill | 57 | 15.2% |
| ESP | SendGrid (Twilio) | 55 | 14.7% |
| ESP | Zendesk | 47 | 12.5% |
| ESP | Amazon SES | 45 | 12.0% |
TLD distribution (top 24 of 24)
Frequently asked questions
How many domains use APSIS?
375 domains in the Tranco top-1M use APSIS as their email service provider (ESP) as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is APSIS's market share?
APSIS holds 0.06% 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 APSIS?
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 375 domains.