Pearl SaaS sender
According to Live Direct Marketing's daily Tranco top-1M scan (September 22, 2026), Pearl is the SaaS sender for 129 domains — 0.02% of 637,585 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 129 domains in the Tranco top-1M use Pearl (0.02% of SPF-publishing domains).
- Snapshot date: 2026-09-22 — recomputed every day.
- Strongest TLD: .com (68.2% of its domains).
- Most co-used service: Google Workspace.
- Directory category: SaaS sender.
Why Pearl appears in this category
Pearl — UK loyalty cloud.
We classify it as a SaaS sender from include: mechanisms in the SPF record matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Pearl is a SaaS email service provider that transmits outbound mail on behalf of customer domains, routing their messages through Pearl's own mail infrastructure. Organisations using Pearl integrate by configuring their SPF and DKIM records to authorise Pearl's servers as legitimate senders.
Pearl's customer base concentrates among smaller organisations rather than the largest brands, with particular density in the .com space and frequent co-deployment with Google Workspace. For senders, joining Pearl means drawing from a sender reputation pool shared with other Pearl customers. For recipients and mailbox providers, Pearl represents one of many third-party email intermediaries whose infrastructure reputation and abuse posture directly affect whether Pearl-sent mail reaches inboxes.
Where Pearl 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 | 5 | 3.9% |
| Top 1,000,000 | 122 | 94.6% |
| Unranked | 2 | 1.6% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 88 | 68.2% | |
| .co.uk | 28 | 21.7% | |
| .ie | 4 | 3.1% | |
| .com.au | 3 | 2.3% | |
| .edu | 1 | 0.8% | |
| .eu | 1 | 0.8% | |
| .ca | 1 | 0.8% | |
| .us | 1 | 0.8% | |
| .no | 1 | 0.8% | |
| .co | 1 | 0.8% |
What Pearl users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 129 domains.
| Type | Service | Domains | Share of Pearl users |
|---|---|---|---|
| Mailbox | Google Workspace | 56 | 43.4% |
| Mailbox | Microsoft 365 | 53 | 41.1% |
| Mailbox | Mimecast | 3 | 2.3% |
| Mailbox | Barracuda | 3 | 2.3% |
| Mailbox | Proofpoint Essentials | 2 | 1.6% |
| Mailbox | Unknown / Other | 2 | 1.6% |
SPF authorisation and shared reputation
Pearl functions as an authorised mail relay, appearing in customer SPF records as an include mechanism that permits Pearl's servers to send on their behalf. This shared-infrastructure model means all Pearl customers draw sender reputation from the same IP pools; poor sending practices by any one customer can degrade delivery for others, whilst filtering decisions at major mailbox providers simultaneously affect all users of that Pearl instance.
See the full Pearl data page (KPI cards, trend, sample domains) →
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Frequently asked questions
What is Pearl in relation to email?
Pearl is a third-party email service provider that organisations use to send outbound mail through its infrastructure; if you see Pearl in your domain's SPF record, your organisation is configured to relay email via Pearl's servers, and their sender reputation affects your deliverability.
How many domains use Pearl?
129 domains in the Tranco top-1M use Pearl as their SaaS sender as of September 22, 2026 (0.02% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Pearl common enough to affect email deliverability testing?
Pearl accounts for 0.02% 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.
Which countries or TLDs use Pearl most?
Pearl's largest TLD is .com (68.2% of its domains); it appears across 10 TLDs in total.