All Live MailJet Sites List
Mailjet serves 40,000+ businesses with transactional and marketing email infrastructure. Mailjet has strong adoption in European markets, particularly France, and is owned by Sinch (a Swedish communications company).
MailJet — Market Intelligence
Best for: Transactional email tools, European marketing technology, and developer-focused marketing infrastructure.
Email engineers and marketing operations leaders control Mailjet decisions. Strong developer and technical marketing audience.
Platform Facts
- ▸ 40,000+ businesses use Mailjet globally
- ▸ Mailjet is part of Sinch, a $5 billion communications infrastructure company
- ▸ Mailjet processes 30+ billion emails annually
- ▸ Strong French and European market positioning
MailJet Sites by Region
Site Traffic Tiers
| Monthly Traffic | % of Sites |
|---|---|
| High Traffic (>100K/mo) | 9% |
| Medium Traffic (10K–100K/mo) | 29% |
| Low/New (<10K/mo) | 62% |
What Is the All Live MailJet Sites List?
The All Live MailJet Sites List is a database of 279,059+ websites confirmed to be actively using MailJet. Compiled using BuiltWith technology intelligence, it provides direct access to website owners and administrators who are already users of the MailJet platform.
Unlike broad contact databases, this list is qualified by technology signal — making it uniquely relevant for companies selling complementary products, apps, themes, or services to MailJet users.
45% of listed sites are US-based. Email accuracy is 92%+, last verified Q3 2026.
What's Included
| Field | Status |
|---|---|
| Website URL | ✓ Verified |
| Owner/Admin Email | ✓ Included |
| Business Name | Where Available |
| Contact Name | Where Available |
| Country | ✓ Included |
| Traffic Tier | ✓ Estimated |
| Technology Confirmed | ✓ MailJet |
Who Uses This Database
Plugin & App Developers
Sell MailJet plugins, apps, and extensions to 279K+ active MailJet site owners directly.
Theme & Design Vendors
Reach MailJet website owners for theme sales, design services, and visual optimisation tools.
SaaS & Software
Sell complementary SaaS tools — analytics, marketing, CRM, automation — to MailJet users.
Agency Services
Offer SEO, PPC, and digital marketing services to 279K+ MailJet site owners needing help.
Cold Email Outreach
Launch targeted outreach to MailJet website owners — a highly specific, technology-qualified audience.
Competitive Intelligence
Identify businesses using competing or complementary technologies and reach them with targeted messaging.
Tools & Guides for MailJet Outreach
About the All Live MailJet Sites List
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Download the All Live MailJet Sites List — 279,059+ verified websites using MailJet with owner contact data.