esp
According to Live Direct Marketing's daily Tranco top-1M scan (July 20, 2026), SiteSell SBI! is the email service provider (ESP) for 26 domains — 0.00% of 627,463 SPF-publishing domains. Its strongest TLD is .com (96.2% of its domains). Detection: include: mechanisms in the SPF record.
What else the same 26 domains use — cross-tabulated from the same daily snapshot (2026-07-20).
| Type | Service | Domains | Share of SiteSell SBI! users |
|---|---|---|---|
| Mailbox | Unknown / Other | 16 | 61.5% |
| Mailbox | Google Workspace | 5 | 19.2% |
| Mailbox | Microsoft 365 | 2 | 7.7% |
| Mailbox | Self-Hosted | 1 | 3.8% |
| Mailbox | Zoho Mail | 1 | 3.8% |
| ESP | MailerSend | 2 | 7.7% |
| ESP | SenderSRV | 1 | 3.8% |
| ESP | MailChannels | 1 | 3.8% |
| ESP | Mailgun | 1 | 3.8% |
26 domains in the Tranco top-1M use SiteSell SBI! as their email service provider (ESP) as of July 20, 2026, according to Live Direct Marketing's daily DNS scan.
SiteSell SBI! holds 0.00% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-20). The number is recomputed every day.
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 2026-07-20).
Amazon SES (6.17%) · SendGrid (Twilio) (4.73%) · Mailgun (4.10%) · Zendesk (3.83%) · Mailchimp (3.67%) · Mandrill (3.34%) · HubSpot (3.15%) · Salesforce (2.60%) · Mailjet (Sinch) (2.12%) · Cloudflare Email Routing (1.81%)
Showing 26 of 26 domains.