Insular email distribution - mail server as Docker images

• UpdatedNov 3, 2025
• Python

✉️ Composable all-in-one mail server.

• UpdatedJul 18, 2025
• Go

An email spoofing testing tool that aims to bypass SPF/DKIM/DMARC and forge DKIM signatures.🍻

• UpdatedMay 13, 2022
• Python

⚠️ UNMAINTAINED - Simple and full-featured mail server using Docker

• UpdatedJan 1, 2020
• Shell

Simple API, Complex Emails (Jakarta Mail smtp wrapper)

• UpdatedJun 2, 2025
• Java

Awesome Opensource Email Resources

• UpdatedNov 5, 2025

Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records.

• UpdatedSep 20, 2025
• Python

Stalwart SMTP Server

• UpdatedOct 8, 2024
• Rust

Bash script to check if a domain or list of domains can be spoofed based in DMARC records

• UpdatedMar 6, 2022
• Shell

A parser for SPF and DMARC DNS records

• UpdatedOct 30, 2025
• Python

A php parser, viewer and summary report generator for incoming DMARC reports.

• UpdatedOct 24, 2025
• PHP

Convert dmarc reports from xml to human-readable formats

• UpdatedJun 17, 2024
• Go

Open DMARC Analyzer is an Open Source DMARC Report Analyzer to be used with DMARC reports that have been parsed by John Levine's rrdmarc script or techsneeze's dmarcts-report-parser.

• UpdatedJun 17, 2024
• PHP

Scan domains and return data based on trustworthy email best practices

• UpdatedOct 17, 2025
• Python

🔏 A Go library and tools for DKIM, DMARC and Authentication-Results

• UpdatedApr 20, 2025
• Go

Internet standards compliance test suite

• UpdatedNov 6, 2025
• Python

Internet.nl toolbox - how-to's for modern mail security standards (DMARC, DKIM, SPF and DANE)

• UpdatedOct 1, 2025

Scan domains and receive advice based on their BIMI, DKIM, DMARC, and SPF records

• UpdatedJun 27, 2025
• Go

Simple and full-featured mail server using Docker

• UpdatedAug 29, 2025
• Shell

Lightweight Standalone DMARC and SMTP TLS Report Viewer with IMAP Client

• UpdatedNov 2, 2025
• Rust