esp
According to Live Direct Marketing's daily Tranco top-1M scan (July 12, 2026), iCoreMail is the email service provider (ESP) for 364 domains — 0.06% of 617,244 SPF-publishing domains. Its strongest TLD is .cn (52.5% of its domains). Detection: include: mechanisms in the SPF record.
What else the same 364 domains use — cross-tabulated from the same daily snapshot (2026-07-12).
| Type | Service | Domains | Share of iCoreMail users |
|---|---|---|---|
| Mailbox | Unknown / Other | 155 | 42.6% |
| Mailbox | Self-Hosted | 112 | 30.8% |
| Mailbox | Generic / unmatched (mx*.*) | 82 | 22.5% |
| Mailbox | QQ Mail (Tencent) | 3 | 0.8% |
| Mailbox | Google Workspace | 3 | 0.8% |
| Mailbox | Barracuda | 1 | 0.3% |
| ESP | Mandrill | 3 | 0.8% |
| ESP | Mailgun | 2 | 0.5% |
| ESP | Zendesk | 2 | 0.5% |
| ESP | HubSpot | 1 | 0.3% |
364 domains in the Tranco top-1M use iCoreMail as their email service provider (ESP) as of July 12, 2026, according to Live Direct Marketing's daily DNS scan.
iCoreMail holds 0.06% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-12). 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 2026-07-12).
Amazon SES (6.21%) · SendGrid (Twilio) (4.75%) · Mailgun (4.11%) · Zendesk (3.87%) · Mailchimp (3.69%) · Mandrill (3.36%) · HubSpot (3.18%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.80%)
Showing 100 of 364 domains.