Rediffmail Pro mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), Rediffmail Pro is the mailbox provider for 99 domains — 0.01% of 665,310 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 99 domains in the Tranco top-1M use Rediffmail Pro (0.01% of domains with MX records).
- Snapshot date: 2026-09-12 — recomputed every day.
- Strongest TLD: .com (56.6% of its domains).
- Region skew: Global / US-skewed.
- Most co-used service: Mailgun.
- Directory category: mailbox provider.
Why Rediffmail Pro appears in this category
Indian Rediff corporate mailbox.
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.
Rediffmail Pro is a mailbox provider offering hosted email services. It appears in the Tranco top-1 million websites predominantly in the .com domain, serving smaller organisations and websites rather than the largest brands.
For email professionals, Rediffmail Pro's position in the long tail of mail hosts—particularly its consistent co-occurrence with Mailgun—reflects a specific archetype: organisations using Rediffmail Pro for received mail and Mailgun for transactional delivery. This pattern affects deliverability strategy; reaching Rediffmail Pro users effectively requires attention to both inbound sender reputation and the outbound authentication protocols of services likely to send mail into Rediffmail Pro inboxes.
Where Rediffmail Pro 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 | 9 | 9.1% |
| Top 1,000,000 | 90 | 90.9% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 56 | 56.6% | |
| .in | 32 | 32.3% | |
| .org | 7 | 7.1% | |
| .co.in | 2 | 2.0% | |
| .me | 1 | 1.0% | |
| .net | 1 | 1.0% |
What Rediffmail Pro users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 99 domains.
| Type | Service | Domains | Share of Rediffmail Pro users |
|---|---|---|---|
| ESP | Mailgun | 3 | 3.0% |
| ESP | Amazon SES | 2 | 2.0% |
| ESP | MailHostBox | 2 | 2.0% |
| ESP | Mandrill | 2 | 2.0% |
| ESP | Mailchimp | 1 | 1.0% |
| ESP | Benchmark Email | 1 | 1.0% |
| ESP | SpamExperts (AntiSpamCloud) | 1 | 1.0% |
| ESP | Salesforce | 1 | 1.0% |
| ESP | SendClean | 1 | 1.0% |
| ESP | JangoMail (Email Galaxy) | 1 | 1.0% |
Co-architecture with Mailgun: infrastructure patterns
Rediffmail Pro's frequent appearance alongside Mailgun suggests a multi-layer email stack where Rediffmail Pro handles received mail whilst Mailgun routes transactional message delivery. This pairing is relevant to deliverability because mail destined for Rediffmail Pro boxes often originates from Mailgun infrastructure; sender reputation, SPF/DKIM/DMARC alignment, and authentication chain completeness all influence filtering decisions at both the ingress (Rediffmail Pro's MX) and egress (Mailgun's SMTP) boundaries.
See the full Rediffmail Pro data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I include Rediffmail Pro in my email deliverability testing?
Yes, if your audience includes organisations using smaller-scale hosting. Testing a sample of Rediffmail Pro addresses reveals filtering patterns unique to this provider, particularly important if you send mail via Mailgun.
How many domains use Rediffmail Pro?
99 domains in the Tranco top-1M use Rediffmail Pro as their mailbox provider as of September 12, 2026 (0.01% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Rediffmail Pro common enough to affect email deliverability testing?
Rediffmail Pro accounts for 0.01% 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 Rediffmail Pro most?
Rediffmail Pro's largest TLD is .com (56.6% of its domains); it appears across 6 TLDs in total.