SolarWinds MailLogin email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), SolarWinds MailLogin is the email service provider (ESP) for 370 domains — 0.06% of 629,828 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 370 domains in the Tranco top-1M use SolarWinds MailLogin (0.06% of SPF-publishing domains).
- Snapshot date: 2026-09-12 — recomputed every day.
- Strongest TLD: .com (48.6% of its domains).
- Most co-used service: MXroute.
- Directory category: email security gateway.
Why SolarWinds MailLogin appears in this category
SolarWinds MailLogin — outbound mail signing.
We classify it as a email security gateway 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.
SolarWinds MailLogin is an email delivery and authentication service operated by SolarWinds, a provider of infrastructure management and monitoring software. It enables organisations to send transactional and marketing email through SolarWinds's cloud infrastructure, with authentication configured via SPF include mechanisms in DNS.
Its footprint clusters across smaller and mid-market websites, predominantly in the .com domain space, reflecting adoption by organisations seeking to outsource email delivery without managing their own mail servers. For senders, MailLogin's platform reputation influences deliverability outcomes at receiving mail systems. For recipients and mail operators, email from MailLogin-using domains originates through SolarWinds infrastructure, so filtering decisions hinge on both the sending domain's own history and the platform's compliance standing.
Where SolarWinds MailLogin sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 3 | 0.8% |
| Top 100,000 | 33 | 8.9% |
| Top 1,000,000 | 332 | 89.7% |
| Unranked | 2 | 0.5% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 180 | 48.6% | |
| .net | 32 | 8.6% | |
| .org | 26 | 7.0% | |
| .nl | 6 | 1.6% | |
| .ru | 6 | 1.6% | |
| .io | 6 | 1.6% | |
| .com.br | 4 | 1.1% | |
| .social | 4 | 1.1% | |
| .ro | 4 | 1.1% | |
| .in | 3 | 0.8% |
What SolarWinds MailLogin users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 370 domains.
| Type | Service | Domains | Share of SolarWinds MailLogin users |
|---|---|---|---|
| Mailbox | MXroute | 253 | 68.4% |
| Mailbox | Unknown / Other | 44 | 11.9% |
| Mailbox | Google Workspace | 21 | 5.7% |
| Mailbox | Self-Hosted | 17 | 4.6% |
| Mailbox | Microsoft 365 | 9 | 2.4% |
| Mailbox | ProtonMail | 4 | 1.1% |
| ESP | Amazon SES | 21 | 5.7% |
| ESP | SendGrid (Twilio) | 15 | 4.1% |
| ESP | Mailjet (Sinch) | 10 | 2.7% |
| ESP | Brevo (ex-Sendinblue) | 6 | 1.6% |
SPF delegation and shared infrastructure reputation
When a domain includes MailLogin's SPF record, it delegates sending authentication and infrastructure to SolarWinds. Receiving mail systems evaluate deliverability based on both the domain's own sending history and the reputation of the infrastructure it routes through. Because multiple organisations share SolarWinds's IP space, poor sending practices by one tenant can affect the shared IP reputation, making compliance and list hygiene critical for all users on the platform.
See the full SolarWinds MailLogin data page (KPI cards, trend, sample domains) →
Run a free inbox-placement test across Gmail, Outlook, Yahoo and more — see exactly where your mail lands and why.
Frequently asked questions
What is SolarWinds MailLogin and why do organisations use it?
SolarWinds MailLogin is a cloud-based email delivery service that handles outbound transactional and marketing email, allowing organisations to avoid managing their own mail servers. Organisations add MailLogin's SPF include to their DNS records to authenticate email sent through the service.
How many domains use SolarWinds MailLogin?
370 domains in the Tranco top-1M use SolarWinds MailLogin as their email service provider (ESP) as of September 12, 2026 (0.06% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is SolarWinds MailLogin common enough to affect email deliverability testing?
SolarWinds MailLogin accounts for 0.06% 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 SolarWinds MailLogin most?
SolarWinds MailLogin's largest TLD is .com (48.6% of its domains); it appears across 77 TLDs in total.