Rambler (RU) mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 22, 2026), Rambler (RU) is the mailbox provider for 7 domains — 0.00% of 675,663 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 7 domains in the Tranco top-1M use Rambler (RU) (0.00% of domains with MX records).
- Snapshot date: 2026-09-22 — recomputed every day.
- Strongest TLD: .ru (85.7% of its domains).
- Region skew: Russia.
- Directory category: mailbox provider.
Why Rambler (RU) appears in this category
Russian portal mail (now Sber-owned).
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.
Rambler is a Russian email provider operating the rambler.ru mailbox service. It serves as a significant mailbox infrastructure for users and organisations across Russia and the Russian-speaking region.
Rambler appears as the primary MX record for many high-traffic and enterprise websites in the .ru namespace. For senders targeting Russian domains or recipients of Russian inbound mail, Rambler's authentication policies, filtering behaviour, and regional technical infrastructure are direct determinants of email delivery success.
Where Rambler (RU) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 2 | 28.6% |
| Top 100,000 | 0 | 0.0% |
| Top 1,000,000 | 5 | 71.4% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .ru | 6 | 85.7% | |
| .ua | 1 | 14.3% |
Authentication strictness for Russian mailbox providers
Rambler and similar Russian mailbox operators typically maintain rigorous authentication requirements for inbound mail, particularly from senders outside the region. Senders should ensure their SPF, DKIM, and DMARC are correctly configured and aligned before targeting Russian recipients; misaligned or unsigned mail may face rejection or aggressive filtering. Testing your authentication setup against Rambler is a practical prerequisite for reliable delivery to Russian email users and .ru domains.
See the full Rambler (RU) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
What is Rambler and why does it matter for email deliverability?
Rambler is a major Russian email provider and MX host for many .ru websites. If you send to or receive mail from Russian domains, Rambler's filtering and authentication standards directly impact your deliverability and should be part of your testing regimen.
How many domains use Rambler (RU)?
7 domains in the Tranco top-1M use Rambler (RU) as their mailbox provider as of September 22, 2026 (0.00% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Rambler (RU) common enough to affect email deliverability testing?
Rambler (RU) 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 Rambler (RU) most?
Rambler (RU)'s largest TLD is .ru (85.7% of its domains); it appears across 2 TLDs in total.