MailTub
APIyesOSS—FREE—DOCS5/5
MA7.0#5 of 25
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Ranked in Disposable Email Services ·No free plan on record
About
MailTub is ranked #5 of 25 in disposable email services on Inferse. It runs on Android, API, iOS, Linux, macOS, Self-hosted, Web, Windows.
Compared on disposable email services
- Inbox lifetime
- hoursgithub.com
- Custom address
- Yesgithub.com
- API access
- Yesgithub.com
- Custom domain
- Yesgithub.com
- Attachments supported
- Yesgithub.com
Facts
- Purpose
- MailTub is a self-hosted disposable email service that creates temporary inboxes.github.com · 30 Sept 2026
- Real-time inboxes
- New emails appear through WebSocket push, without polling.github.com · 30 Sept 2026
- Mailbox limits
- A session can have up to five simultaneous inboxes, with expiry options of 1 hour, 6 hours, 24 hours, or 7 days.github.com · 30 Sept 2026
- User interface
- The web interface supports dark, light, or system themes, and can be installed as a progressive web app on mobile and desktop.github.com · 30 Sept 2026
- Deployment
- MailTub runs as a single Go binary with SQLite and an embedded React interface, and also provides Docker deployment.github.com · 30 Sept 2026
- Integrations
- It provides a REST API, SMTP receiving, WebSocket updates, and a Prometheus-compatible metrics endpoint.github.com · 30 Sept 2026
- Optional caching
- Mailbox caching can optionally use a Redis or Upstash URL.github.com · 30 Sept 2026
- Security
- The admin panel stores its password as a bcrypt hash and uses HMAC-SHA256 signed session cookies with a 24-hour lifetime.github.com · 30 Sept 2026
- Rate limit
- Mailbox creation is limited to 20 per IP per hour.github.com · 30 Sept 2026
- Email size limits
- Defaults include a 25 MiB SMTP message limit, a 25 MiB per-attachment cap, and a 50 MiB total attachment cap per email.github.com · 30 Sept 2026
- Support and security contact
- The project asks users to report vulnerabilities to [email protected].github.com · 30 Sept 2026
- License
- The repository identifies the project as Apache 2.0 licensed.github.com · 30 Sept 2026
- Real-time email
- New emails appear through WebSocket push, which the project says delivers them in milliseconds without polling.github.com · 30 Sept 2026
- Inbox limits
- A session can have up to five simultaneous inboxes, with mailbox expiry choices of 1 hour, 6 hours, 24 hours, or 7 days.github.com · 30 Sept 2026
- Attachments
- MailTub parses MIME attachments and supports configurable per-attachment and total attachment size caps.github.com · 30 Sept 2026
- Exports
- Users can download an inbox as an .eml ZIP or structured JSON.github.com · 30 Sept 2026
- API and CLI
- MailTub provides a REST API and a scriptable CLI for creating, listing, reading, watching, and sending mail.github.com · 30 Sept 2026
- Rate limiting
- MailTub limits mailbox creation to 20 per IP per hour.github.com · 30 Sept 2026
- Receiving mail requirements
- Receiving real email requires a domain with an MX record pointing to the server, port 25 access or redirection, and a matching MAILTUB_DOMAIN setting.github.com · 30 Sept 2026
- Support
- The project asks users to report security vulnerabilities to [email protected].github.com · 30 Sept 2026
Best MailTub alternatives
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Where it ranks on Inferse
Sources
- github.com/dml-labs/mailtub· checked 30 Sept 2026