VerticalScope mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 11, 2026), VerticalScope is the mailbox provider for 147 domains — 0.02% of 666,213 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 147 domains in the Tranco top-1M use VerticalScope (0.02% of domains with MX records).
- Snapshot date: 2026-09-11 — recomputed every day.
- Strongest TLD: .com (83.7% of its domains).
- Region skew: Global / US-skewed.
- Most co-used service: SendGrid (Twilio).
- Directory category: corporate mail infrastructure.
Why VerticalScope appears in this category
Canadian forum/community network operator.
We classify it as a corporate mail infrastructure from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
VerticalScope is an email hosting provider identified through its presence as the primary MX record for websites across the Tranco top-1 million list. Its infrastructure manages mailbox services for the sites that use it.
The distribution of VerticalScope's presence reveals a specific market segment: smaller sites in the long tail rather than major brands, concentrated in the .com namespace, with geographic skew towards global and US markets. This positioning matters for email professionals because VerticalScope-hosted inboxes typically cluster alongside SendGrid for outbound mail, creating a particular technical and reputational context that distinguishes them from other mailbox provider segments.
Where VerticalScope 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 | 0 | 0.0% |
| Top 1,000,000 | 147 | 100.0% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 123 | 83.7% | |
| .net | 14 | 9.5% | |
| .org | 7 | 4.8% | |
| .ca | 2 | 1.4% | |
| .co.uk | 1 | 0.7% |
What VerticalScope users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 147 domains.
| Type | Service | Domains | Share of VerticalScope users |
|---|---|---|---|
| ESP | SendGrid (Twilio) | 146 | 99.3% |
Authentication variability across long-tail hosting
VerticalScope's concentration amongst smaller websites means authentication enforcement and spam filtering behaviour varies more significantly than at larger, centralised email hosts. Whilst most sites maintain standard SPF, DKIM, and DMARC records (often configured alongside SendGrid integration), their smaller scale and individual management result in inconsistent enforcement rigour across the VerticalScope network, requiring senders to account for this heterogeneity.
See the full VerticalScope data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Is VerticalScope a priority mailbox provider for deliverability testing?
VerticalScope is worth testing if your audience includes smaller, .com-focused websites; its long-tail concentration makes it a relevant scenario for understanding inbox filtering at smaller-scale properties.
How many domains use VerticalScope?
147 domains in the Tranco top-1M use VerticalScope as their mailbox provider as of September 11, 2026 (0.02% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is VerticalScope common enough to affect email deliverability testing?
VerticalScope accounts for 0.02% of domains with MX records 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 VerticalScope most?
VerticalScope's largest TLD is .com (83.7% of its domains); it appears across 5 TLDs in total.