According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Salesforce is the email service provider (ESP) for 16,155 domains — 2.62% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Salesforce, the customer relationship management platform owned by Salesforce, Inc., operates email infrastructure that handles transactional and marketing communications for its users. Many organisations rely on Salesforce's native email capabilities or Marketing Cloud to send customer messages, and the platform publishes SPF records authorising its servers to authenticate on behalf of customer domains.
Salesforce's footprint across the web reflects a long tail of smaller and mid-market organisations rather than concentration among the largest brands. It appears most frequently in .com domains and is commonly found alongside Microsoft 365 in heterogeneous multi-vendor sender stacks. The platform's market presence has been declining relative to specialist competitors, a pattern worth tracking when auditing email authentication across diverse sender populations.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 79 | 0.5% |
| Top 10,000 | 462 | 2.9% |
| Top 100,000 | 3,402 | 21.1% |
| Top 1,000,000 | 11,498 | 71.2% |
| Unranked | 714 | 4.4% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 9,472 | 58.6% | |
| .org | 1,427 | 8.8% | |
| .de | 406 | 2.5% | |
| .edu | 262 | 1.6% | |
| .co.jp | 259 | 1.6% | |
| .com.au | 259 | 1.6% | |
| .co.uk | 255 | 1.6% | |
| .net | 231 | 1.4% | |
| .com.br | 208 | 1.3% | |
| .fr | 197 | 1.2% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 16,155 domains.
| Type | Service | Domains | Share of Salesforce users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 7,036 | 43.6% |
| Mailbox | Google Workspace | 4,238 | 26.2% |
| Mailbox | Mimecast | 1,178 | 7.3% |
| Mailbox | Proofpoint | 1,073 | 6.6% |
| Mailbox | Unknown / Other | 648 | 4.0% |
| Mailbox | Self-Hosted | 381 | 2.4% |
| ESP | Amazon SES | 3,048 | 18.9% |
| ESP | HubSpot | 2,543 | 15.7% |
| ESP | SendGrid (Twilio) | 2,543 | 15.7% |
| ESP | Zendesk | 2,042 | 12.6% |
Organisations that authorise Salesforce in their SPF records often do so as one of several permitted senders rather than as a sole email vendor. When Salesforce shares authentication duties with Microsoft 365, on-premises systems, or other email platforms, senders must manage cumulative complexity: multiple DKIM signers, overlapping SPF mechanisms, and heightened risk of DMARC misalignment when messages transit multiple vendors or are transformed in transit. This fragmentation is particularly acute in smaller organisations where email infrastructure has grown piecemeal, creating operational overhead and increased deliverability friction if any single vendor's reputation declines.
See the full Salesforce data page (KPI cards, trend, sample domains) →
Salesforce is listed in SPF records because organisations use it to send email on their behalf—typically for marketing campaigns, transactional messages, or CRM-driven workflows. The SPF mechanism authorises Salesforce's infrastructure to transmit messages from that domain, which is standard practice for any email service provider.
16,155 domains in the Tranco top-1M use Salesforce as their email service provider (ESP) as of July 13, 2026 (2.62% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Salesforce accounts for 2.62% of SPF-publishing domains 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.
Salesforce is declining — its share moved -0.01 pp over the last 30 days (as of July 13, 2026).
Salesforce's largest TLD is .com (58.6% of its domains); it appears across 240 TLDs in total.