smtpmock
A lightweight, configurable fake SMTP server written in Go for testing email functionality without a real mail server.
What is smtpmock?
smtpmock is a fake SMTP server written in Go that mimics real SMTP server behavior for testing purposes. It allows developers to simulate email sending and receiving in test environments without needing an actual mail server. The server is configurable, RFC-compliant, and supports various testing scenarios like delayed responses, blacklisted emails, and fail-fast error handling.
Developers and QA engineers who need to test email functionality in applications, especially those working in Go or Ruby ecosystems. It's ideal for integration testing where email delivery must be simulated without external dependencies.
smtpmock offers a lightweight, dependency-free alternative to real SMTP servers for testing, with extensive configurability to mimic diverse server behaviors. Its RFC compliance and cross-ecosystem support make it a versatile tool for ensuring email-related code works correctly in isolation.
Overview
SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.
Use Cases
Best For
- Testing email-sending functionality in Go applications
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