Daum Mail mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Daum Mail is the mailbox provider for 432 domains — 0.06% of 675,489 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 432 domains in the Tranco top-1M use Daum Mail (0.06% of domains with MX records).
- Snapshot date: 2026-09-24 — recomputed every day.
- Strongest TLD: .com (36.8% of its domains).
- Region skew: South Korea.
- Most co-used service: Stibee.
- Directory category: mailbox provider.
Why Daum Mail appears in this category
Kakao-owned Korean portal mail.
We classify it as a mailbox provider from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Daum Mail is a webmail service operated by Daum Kakao, a major South Korean internet and media conglomerate. It sits within a larger ecosystem that includes search, messaging, and content platforms, serving a primarily Asia-Pacific user base.
Daum Mail's footprint in global email traffic has a distinctive character: it appears predominantly in the long tail of smaller and mid-market websites rather than among the largest global brands, with a pronounced regional concentration in South Korea. The service frequently clusters alongside Stibee, a Korean email-marketing platform, which signals that Daum Mail often correlates with campaigns targeting regional or SMB audiences rather than multinational enterprises.
Where Daum Mail sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 2 | 0.5% |
| Top 100,000 | 18 | 4.2% |
| Top 1,000,000 | 409 | 94.7% |
| Unranked | 3 | 0.7% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 159 | 36.8% | |
| .co.kr | 153 | 35.4% | |
| .kr | 64 | 14.8% | |
| .net | 34 | 7.9% | |
| .org | 9 | 2.1% | |
| .tv | 3 | 0.7% | |
| .gg | 2 | 0.5% | |
| .io | 1 | 0.2% | |
| .at | 1 | 0.2% | |
| .me | 1 | 0.2% |
What Daum Mail users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 432 domains.
| Type | Service | Domains | Share of Daum Mail users |
|---|---|---|---|
| ESP | Stibee | 6 | 1.4% |
| ESP | Amazon SES | 4 | 0.9% |
| ESP | Mailgun | 4 | 0.9% |
| ESP | Cafe24 (Gabia, KR) | 2 | 0.5% |
| ESP | SMTP.com | 1 | 0.2% |
| ESP | MailerSend | 1 | 0.2% |
| ESP | Mailchimp | 1 | 0.2% |
Regional footprint and test-prioritisation implications
Because Daum Mail's MX prevalence is concentrated in the long tail and in South Korea-focused organisations, it serves as an indirect marker of regional and SMB audience composition. A deliverability testing strategy that encounters Daum Mail frequently in MX lookups suggests the need to prioritise South Korean and Asia-Pacific recipient segments; conversely, US-centric or globally distributed campaigns are less likely to require Daum Mail-specific testing unless audience analysis reveals significant Korean representation.
See the full Daum Mail data page (KPI cards, trend, sample domains) →
Run a free inbox-placement test across Gmail, Outlook, Yahoo and more — see exactly where your mail lands and why.
Frequently asked questions
Do I need to test email deliverability against Daum Mail?
It depends on your recipient base. Daum Mail is regionally concentrated in South Korea; if your audience skews toward Korean language, South Korean SMBs, or Asia-Pacific segments, testing against Daum Mail is advisable. For US-only or globally distributed campaigns without significant Korean representation, other providers will take priority.
How many domains use Daum Mail?
432 domains in the Tranco top-1M use Daum Mail as their mailbox provider as of September 24, 2026 (0.06% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Daum Mail common enough to affect email deliverability testing?
Daum Mail accounts for 0.06% of domains with MX records in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Which countries or TLDs use Daum Mail most?
Daum Mail's largest TLD is .com (36.8% of its domains); it appears across 15 TLDs in total.