esp
According to Live Direct Marketing's daily Tranco top-1M scan (July 26, 2026), Unisender (RU) is the email service provider (ESP) for 3,720 domains — 0.59% of 630,738 SPF-publishing domains. Its share has been stable over the last 30 days. Its strongest TLD is .ru (69.2% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-07-26 DNS snapshot.
Unisender — Russian email and SMS marketing platform, one of the most popular ESPs in the RU/CIS market.
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.
Across 135 distinct TLDs its top three are .ru (69.2%), .com (11.4%), .by (2.5%) — together 83.1% of the 3,720 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Yandex 360 (Mailbox, 1,142 domains, 30.7% of them), followed by Self-Hosted (26.9%). Its share of SPF-publishing domains has not moved measurably in 30 days. 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 (2026-07-26); 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.
What else the same 3,720 domains use — cross-tabulated from the same daily snapshot (2026-07-26).
| Type | Service | Domains | Share of Unisender (RU) users |
|---|---|---|---|
| Mailbox | Yandex 360 | 1,142 | 30.7% |
| Mailbox | Self-Hosted | 1,002 | 26.9% |
| Mailbox | Mail.ru for Business | 411 | 11.0% |
| Mailbox | Google Workspace | 371 | 10.0% |
| Mailbox | Unknown / Other | 172 | 4.6% |
| Mailbox | Generic / unmatched (mx*.*) | 148 | 4.0% |
| ESP | SendPulse | 341 | 9.2% |
| ESP | UniSender | 168 | 4.5% |
| ESP | DashaMail (RU) | 161 | 4.3% |
| ESP | Sendsay | 159 | 4.3% |
3,720 domains in the Tranco top-1M use Unisender (RU) as their email service provider (ESP) as of July 26, 2026, according to Live Direct Marketing's daily DNS scan.
Unisender (RU) holds 0.59% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-26). The number is recomputed every day.
Unisender (RU)'s share has been stable over the last 30 days (±0.01 pp).
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 2026-07-26).
Amazon SES (6.17%) · SendGrid (Twilio) (4.76%) · Mailgun (4.11%) · Zendesk (3.83%) · Mailchimp (3.70%) · Mandrill (3.36%) · HubSpot (3.19%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.82%)
Showing 100 of 3,720 domains.