According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), SolarWinds Service Desk is the SaaS sender for 180 domains — 0.03% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
SolarWinds Service Desk is a cloud-based IT service management platform operated by SolarWinds that enables organisations to manage support tickets, asset tracking, and customer communications. When deployed, it sends transactional emails — ticket notifications, escalations, customer updates — on behalf of a sending domain, authenticating via SPF include records.
The platform sits primarily in the long tail of smaller organisations and mid-market firms rather than the largest global brands, with particularly heavy adoption in the .com namespace. It frequently coexists with Microsoft 365 deployments, reflecting organisations that have standardised on Microsoft infrastructure for both email and ticketing needs. For email senders and receivers, this overlap means SolarWinds Service Desk reputation is often entangled with both the individual sending domain and shared Microsoft-adjacent authentication pools.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 22 | 12.2% |
| Top 1,000,000 | 151 | 83.9% |
| Unranked | 7 | 3.9% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 90 | 50.0% | |
| .org | 33 | 18.3% | |
| .edu | 18 | 10.0% | |
| .gov | 11 | 6.1% | |
| .ca | 6 | 3.3% | |
| .co.uk | 3 | 1.7% | |
| .org.uk | 2 | 1.1% | |
| .net | 2 | 1.1% | |
| .ac.uk | 2 | 1.1% | |
| .us | 2 | 1.1% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 180 domains.
| Type | Service | Domains | Share of SolarWinds Service Desk users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 84 | 46.7% |
| Mailbox | Mimecast | 36 | 20.0% |
| Mailbox | Google Workspace | 16 | 8.9% |
| Mailbox | Proofpoint | 13 | 7.2% |
| Mailbox | Barracuda | 9 | 5.0% |
| Mailbox | Unknown / Other | 6 | 3.3% |
Organisations deploying SolarWinds Service Desk alongside Microsoft 365 often add multiple SPF include records to the same sending domain. This can increase SPF record complexity and query depth, especially when combined with other email services, which may impair authentication at some receivers if not carefully structured. Smaller organisations that lack dedicated email infrastructure expertise are particularly at risk of SPF chains that exceed recommended limits or create circular dependencies.
See the full SolarWinds Service Desk data page (KPI cards, trend, sample domains) →
SolarWinds Service Desk is a cloud-based IT ticketing platform that sends emails on behalf of your domain; it appears in your SPF records when configured to dispatch ticket notifications and customer communications on your behalf.
180 domains in the Tranco top-1M use SolarWinds Service Desk as their SaaS sender as of July 13, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
SolarWinds Service Desk accounts for 0.03% 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.
SolarWinds Service Desk's largest TLD is .com (50.0% of its domains); it appears across 21 TLDs in total.