Openprovider NoSpamCloud mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 14, 2026), Openprovider NoSpamCloud is the mailbox provider for 33 domains — 0.00% of 674,487 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 33 domains in the Tranco top-1M use Openprovider NoSpamCloud (0.00% of domains with MX records).
- Snapshot date: 2026-09-14 — recomputed every day.
- Strongest TLD: .jp (24.2% of its domains).
- Region skew: Japan.
- Most co-used service: Amazon SES.
- Directory category: email security gateway.
Why Openprovider NoSpamCloud appears in this category
Openprovider anti-spam cloud (nospamcloud.com).
We classify it as a email security gateway 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.
Openprovider NoSpamCloud is a mailbox provider operated by Openprovider. It handles inbound mail reception for domains that designate its MX servers as their mail handlers.
The provider concentrates on smaller and mid-market websites rather than the largest brands, with particularly high presence in Japan's .co.jp TLD and strong regional skew towards Japanese properties, often appearing alongside Amazon SES. For senders and deliverability engineers, this footprint means NoSpamCloud's filtering and delivery practices likely reflect regional preferences and smaller-site operator needs rather than enterprise standards.
Where Openprovider NoSpamCloud sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 3 | 9.1% |
| Top 1,000,000 | 30 | 90.9% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .jp | 8 | 24.2% | |
| .co.jp | 7 | 21.2% | |
| .com | 6 | 18.2% | |
| .net | 3 | 9.1% | |
| .or.jp | 3 | 9.1% | |
| .com.au | 2 | 6.1% | |
| .ne.jp | 2 | 6.1% | |
| .cc | 1 | 3.0% | |
| .org | 1 | 3.0% |
What Openprovider NoSpamCloud users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 33 domains.
| Type | Service | Domains | Share of Openprovider NoSpamCloud users |
|---|---|---|---|
| ESP | Amazon SES | 3 | 9.1% |
| ESP | HubSpot | 1 | 3.0% |
| ESP | Mailchimp | 1 | 3.0% |
| ESP | Synergy Wholesale (AU) | 1 | 3.0% |
| ESP | Freshworks Freshmarketer | 1 | 3.0% |
| ESP | Help Scout | 1 | 3.0% |
| ESP | Zoho Campaigns | 1 | 3.0% |
| ESP | Zoho ZeptoMail | 1 | 3.0% |
| ESP | Kagoya (JP, sender) | 1 | 3.0% |
| ESP | FSI Email Security | 1 | 3.0% |
Regional concentration and filtering implications
The concentration of NoSpamCloud deployments in Japan, particularly across .co.jp domains, means that Japanese internet service providers and regional email filtering practices may influence how the service handles inbound mail. Senders targeting Japanese recipients or sending to domains using NoSpamCloud should be aware that filtering rules and sender reputation assessment may reflect Japanese ISP norms and smaller-site operator expectations, which can differ from globally standardised approaches used by larger mailbox providers.
See the full Openprovider NoSpamCloud data page (KPI cards, trend, sample domains) →
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Frequently asked questions
What is Openprovider NoSpamCloud and do I need to test deliverability against it?
Openprovider NoSpamCloud is a mailbox provider operated by Openprovider, predominantly used by smaller and mid-market websites with strong presence in Japan. Test against it if you send regularly to Japanese recipients or businesses using Openprovider's ecosystem.
How many domains use Openprovider NoSpamCloud?
33 domains in the Tranco top-1M use Openprovider NoSpamCloud as their mailbox provider as of September 14, 2026 (0.00% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Openprovider NoSpamCloud common enough to affect email deliverability testing?
Openprovider NoSpamCloud accounts for 0.00% 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 Openprovider NoSpamCloud most?
Openprovider NoSpamCloud's largest TLD is .jp (24.2% of its domains); it appears across 9 TLDs in total.