Inbucket

Inbucket

Inbucket is an open source email testing tool for developers. It acts as a fake SMTP server, capturing emails sent to it for inspection and allowing responses to be crafted. Useful for testing email functionality during software development and debugging.
Inbucket image
email smtp testing debugging

Inbucket: Open Source Email Testing Tool

An open source email testing tool, Inbucket acts as a fake SMTP server, capturing emails sent to it for inspection and allowing responses to be crafted, useful for testing email functionality during software development and debugging.

What is Inbucket?

Inbucket is an open source email testing tool designed for software developers and testers. It acts as a fake SMTP server, allowing developers to send test emails to it during development which Inbucket captures and stores for later inspection.

Some key features of Inbucket include:

  • Captures any email sent to it via SMTP and stores it for viewing and inspection. Useful for testing email functionality in apps.
  • Allows crafting and sending SMTP responses and notifications back to connecting email clients/servers. Helpful for simulating different email scenarios.
  • Provides a web interface to view captured emails and attachments, and APIs for programmatic access and automation.
  • Lightweight and runs locally without needing additional infrastructure. Easy to integrate into any development environment.
  • Open source tool with an MIT license, written in Go language. Actively maintained project.

In summary, Inbucket is hugely useful for developers testing email functionality by acting as a fake SMTP server to capture test emails. It allows inspection of emails sent to it and crafting of responses, to validate that applications correctly handle different email scenarios and edge cases.

Inbucket Features

Features

  1. Acts as a fake SMTP server
  2. Captures emails sent to it
  3. Allows inspection of captured emails
  4. Allows crafting responses to emails

Pricing

  • Open Source

Pros

Open source

Useful for testing email functionality during development

Allows debugging of email issues

Cons

Limited features compared to full email services

Requires setup and configuration

Not suitable for production email


The Best Inbucket Alternatives

Top Development and Testing Tools and other similar apps like Inbucket


Postfix icon

Postfix

Postfix is a popular open source Mail Transfer Agent (MTA) that routes and delivers email. It is commonly used for sending and receiving email from servers. Postfix was developed as a fast, easy to administer, and secure alternative to the widely-used Sendmail program.Some key features and highlights of Postfix include:High...
Postfix image
MailHog icon

MailHog

MailHog is an open source email testing tool used by developers for testing email in development and staging environments. It captures outgoing email and displays it in a web interface, instead of sending it externally. This allows developers to test email workflows without spamming real email addresses.Some key features of...
MailHog image
Mailpit icon

Mailpit

Mailpit is an open-source, privacy-focused email client for Windows, Mac, and Linux. It was created by developers and privacy advocates who were concerned about email privacy issues like tracking and data collection.Some of the key features of Mailpit include:End-to-end encryption - Emails are encrypted between the sender and recipient using...
Mailpit image
OpenSMTPD icon

OpenSMTPD

OpenSMTPD is an open source SMTP server daemon for Linux and BSD operating systems. It was created in 2015 as a secure alternative to existing SMTP server solutions.Key features of OpenSMTPD include:Support for the SMTP, SMTP over TLS (SMTPS), and SMTP over SSL (SMTP/SSL) protocolsModular and secure codebase written in...
OpenSMTPD image
Lettre icon

Lettre

Lettre is an open-source newsletter application designed for individuals and businesses who want to create and manage their email newsletters with ease. With Lettre, you can:Design beautiful newsletters using the built-in drag-and-drop editorChoose from a variety of professionally designed templatesEasily customize colors, fonts, layouts, and imagesIntegrate with email service providers...
Lettre image
Go-Guerrilla icon

Go-Guerrilla

Go-Guerrilla is an open source email delivery platform written in Go. It is designed to provide a lightweight, simple alternative to larger commercial solutions like SendGrid or Mailgun.Some key features of Go-Guerrilla include:Simple JSON API for sending emailSupport for SPF, DKIM, and DMARCBuilt-in throttling and reputation monitoringEasy integration with applications...
Go-Guerrilla image