Mailkit email provider statistics and deliverability context
← Email Stats homeesp
According to Live Direct Marketing's daily Tranco top-1M scan (September 13, 2026), Mailkit is the email service provider (ESP) for 194 domains — 0.03% of 628,913 SPF-publishing domains. Its strongest TLD is .cz (50.5% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-13 DNS snapshot.
What Mailkit represents in this dataset
Mailkit — Czech enterprise email marketing.
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 2026-09-13 snapshot shows about Mailkit
Across 33 distinct TLDs its top three are .cz (50.5%), .sk (11.9%), .com (5.7%) — together 68.0% of the 194 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Microsoft 365 (Mailbox, 64 domains, 33.0% of them), followed by Google Workspace (20.1%). 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 (2026-09-13); 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 Mailkit
What else the same 194 domains use — cross-tabulated from the same daily snapshot (2026-09-13).
| Type | Service | Domains | Share of Mailkit users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 64 | 33.0% |
| Mailbox | Google Workspace | 39 | 20.1% |
| Mailbox | Unknown / Other | 18 | 9.3% |
| Mailbox | Self-Hosted | 16 | 8.2% |
| Mailbox | Generic / unmatched (mx*.*) | 11 | 5.7% |
| Mailbox | FORPSI (Internet CZ) | 10 | 5.2% |
| ESP | Heureka Mailing (CZ) | 15 | 7.7% |
| ESP | Mailchimp | 12 | 6.2% |
| ESP | Amazon SES | 10 | 5.2% |
| ESP | SparkPost | 9 | 4.6% |
TLD distribution (top 30 of 33)
Frequently asked questions
How many domains use Mailkit?
194 domains in the Tranco top-1M use Mailkit as their email service provider (ESP) as of September 13, 2026, according to Live Direct Marketing's daily DNS scan.
What is Mailkit's market share?
Mailkit holds 0.03% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-13). The number is recomputed every day.
What are the biggest alternatives to Mailkit?
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 2026-09-13).
Largest email service provider (ESP)s in this category
Amazon SES (6.19%) · SendGrid (Twilio) (4.64%) · Mailgun (4.01%) · Zendesk (3.77%) · Mailchimp (3.57%) · Mandrill (3.25%) · HubSpot (3.12%) · Salesforce (2.55%) · Mailjet (Sinch) (2.12%) · Cloudflare Email Routing (1.95%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 194 domains.