Cost / License
- Free
- Open Source (AGPL-3.0)
Application type
Platforms
- Online
Mailosaur Alternatives
Sites and apps similar to Mailosaur include Mailpit, which is free and open source. Other options are MailGrab, MailHog, Mailcatch.app and Mailtrap. You're spoiled for choice with Mail Servers like Mailosaur: we list more than 25 alternatives for Mac, Windows, Linux and self-hosting.
Alternatives list
Imitate Email is a fake SMTP server for developers and testers. It includes an embeddable widget so that testers can quickly see sent emails alongside the app they're testing.
Cost / License
- Paid
- Proprietary
Platforms
- Online
United Kingdom
Sendpit is a hosted email testing sandbox designed for developers and QA teams. It allows applications to send emails to a safe inbox where messages can be inspected, debugged, and tested without being delivered to real users.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
India
A self-hosted SMTP testing gateway designed to replicate production email behavior—including TLS, DNS, authentication, and spam scoring—so your email tests reflect real-world conditions.
Cost / License
- Free
- Open Source (Apache-2.0)
Application type
Platforms
- Self-Hosted
- Docker
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
- Software as a Service (SaaS)
29 DevMail alternativesDevMail is an email sandbox service for software developers. It allows developers to capture emails from various environments and inspect HTML, text, source code, raw headers, and attachments, and improve deliverability by analyzing email spam scores.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
- United Kingdom
Sunnybox is a fully featured hosted service for handling your email accounts. Fetch, send and analyze your emails through a single, robust API. Easy email processing for developers.
Cost / License
- Paid
- Proprietary
Platforms
- Online
Germany
EU
