dmarc

Insular email distribution - mail server as Docker images

✉️ Composable all-in-one mail server.

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

Simple API, Complex Emails (Jakarta Mail smtp wrapper)

A Python package and CLI for parsing aggregate and forensic DMARC reports

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

A better whois and domain intelligence toolkit

Awesome Opensource Email Resources

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

Stalwart SMTP Server

Lightweight Standalone DMARC and SMTP TLS Report Viewer with IMAP Client

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

A parser for SPF and DMARC DNS records

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

Convert dmarc reports from xml to human-readable formats

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.

One unified email API across 18 providers (SMTP, Resend, SES, Postmark, SendGrid, Mailgun, …). Zero deps, RFC 8058 + DKIM ready, edge-first, strict TypeScript.

Email inbox API for AI agents. Give every agent its own real email address, receive mail as structured webhooks, and reply in-thread over REST. A complete multi-tenant mail server in Rust: inbound and outbound, DKIM/SPF/DMARC/ARC, MTA-STS, DANE, three-tier anti-spam.

Internet standards compliance test suite

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