
Mailgun
Developer-focused email API and deliverability platform for sending, receiving, and tracking emails.
About
Mailgun provides a powerful API for developers to integrate email capabilities into their applications, enabling them to send, receive, and track transactional and marketing emails at scale. It offers features like email validation, deliverability tools, and analytics to ensure emails reach inboxes and optimize campaign performance.
Similar companies
Developer-friendly email API for transactional and marketing emails at scale.
Shares Developer Tools
API-first email infrastructure for AI agents, offering dedicated inboxes and overcoming traditional provider limitations.
Shares Developer Tools
“Here are some of the companies building for AI agents: AgentMail — agents can have email accounts AgentPhone — agents can have phone…” r/ClaudeCode
Cloud-native email delivery and intelligence platform for developers and enterprises.
Shares Developer Tools
SMTPmart provides reliable SMTP servers and bulk email marketing solutions for businesses of all sizes.
In Email Service
Transactional email API running on your own Amazon SES, offering a drop-in replacement for the Resend API.
Shares Developer Tools
Shares SaaS, Email Marketing
Key facts
- Website
- mailgun.com
- Headquarters
- San Antonio, United States
- Founded
- 2010
- Employees
- 194
- Total funding
- $50M (Series B)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 22 Feb 2017 | Series B | $50M |
Tech stack
Detected on mailgun.com, last scanned 22 Oct 2026. Run your own scan
- Frontend
- jQuery, Tailwind CSS, Bootstrap
- SEO
- Yoast SEO
- Support
- Zendesk
- CMS / Builders
- WordPress
- CDN
- Cloudflare
- Email provider
- Microsoft 365
- Email marketing
- Mailgun
- Status page
- Statuspage
Mailgun scores 87. Does yours?
That is its Ahrefs DR: the backlink strength of a domain, on the Ahrefs 0 to 100 scale. Paste your website and you get yours in about a minute.
Frequently asked
Is Mailgun trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Mailgun is 95 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Mailgun raised?
Mailgun has raised a total of $50M in funding. The most recent round on record is Series B.
How many employees does Mailgun have?
Mailgun has approximately 194 people on record.
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Mailgun

