Zoho Campaigns email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Zoho Campaigns is the email service provider (ESP) for 3,214 domains — 0.50% of 637,420 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 3,214 domains in the Tranco top-1M use Zoho Campaigns (0.50% of SPF-publishing domains).
- Snapshot date: 2026-09-24 — recomputed every day.
- 30-day share change: -0.01 pp.
- Strongest TLD: .com (57.6% of its domains).
- Most co-used service: Google Workspace.
- Directory category: email service provider.
Why Zoho Campaigns appears in this category
Zoho Campaigns marketing automation (zcsend.net).
We classify it as a email service provider 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.
Zoho Campaigns is an email marketing platform operated by Zoho Corporation, offering campaign management, audience segmentation, and email delivery services for businesses.
The service appears primarily among smaller and mid-market organisations rather than major enterprises, with notable concentration in the .com ecosystem and frequent deployment alongside Google Workspace environments, indicating its position in the SMB and startup segment of the market.
Where Zoho Campaigns sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 1 | 0.0% |
| Top 10,000 | 17 | 0.5% |
| Top 100,000 | 309 | 9.6% |
| Top 1,000,000 | 2,866 | 89.2% |
| Unranked | 21 | 0.7% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 1,852 | 57.6% | |
| .org | 126 | 3.9% | |
| .com.br | 66 | 2.1% | |
| .net | 66 | 2.1% | |
| .io | 58 | 1.8% | |
| .co.uk | 57 | 1.8% | |
| .de | 54 | 1.7% | |
| .it | 43 | 1.3% | |
| .com.au | 43 | 1.3% | |
| .in | 41 | 1.3% |
What Zoho Campaigns users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 3,214 domains.
| Type | Service | Domains | Share of Zoho Campaigns users |
|---|---|---|---|
| Mailbox | Google Workspace | 1,147 | 35.7% |
| Mailbox | Microsoft 365 | 1,054 | 32.8% |
| Mailbox | Zoho Mail | 226 | 7.0% |
| Mailbox | Self-Hosted | 173 | 5.4% |
| Mailbox | Unknown / Other | 121 | 3.8% |
| Mailbox | Mimecast | 72 | 2.2% |
| ESP | Zoho ZeptoMail | 774 | 24.1% |
| ESP | Amazon SES | 434 | 13.5% |
| ESP | SendGrid (Twilio) | 294 | 9.1% |
| ESP | Mailchimp | 291 | 9.1% |
SPF Authentication and Shared Infrastructure
As a shared email delivery platform, Zoho Campaigns uses SPF include mechanisms to authorise mail sent on behalf of its users. Senders relying on Zoho Campaigns must ensure proper SPF alignment and domain authentication to maintain sender reputation, particularly when deploying mail alongside other ESP services or Google Workspace configurations.
See the full Zoho Campaigns 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
Is Zoho Campaigns a priority inbox for testing email deliverability?
Zoho Campaigns is used primarily by smaller and mid-market organisations, making it worth testing if that demographic comprises part of your audience. Enterprise senders can typically deprioritise it in favour of larger-volume platforms.
How many domains use Zoho Campaigns?
3,214 domains in the Tranco top-1M use Zoho Campaigns as their email service provider (ESP) as of September 24, 2026 (0.50% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Zoho Campaigns common enough to affect email deliverability testing?
Zoho Campaigns accounts for 0.50% 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.
Is Zoho Campaigns growing or declining?
Zoho Campaigns has been stable — its share moved -0.01 pp over the last 30 days (as of September 24, 2026).
Which countries or TLDs use Zoho Campaigns most?
Zoho Campaigns's largest TLD is .com (57.6% of its domains); it appears across 189 TLDs in total.