A fast, highly extensible, and event driven SMTP server

✉️ Composable all-in-one mail server.

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

A parser for SPF and DMARC DNS records

Shell scripts for taming the SPF (Sender Policy Framework) records in order to fight 10-maximum-DNS-look-ups limit.

SPFtoolbox is a Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more

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

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

Postfix SMTP relay docker image

Internet standards compliance test suite

A set of browser-based DNS tools for DigitalOcean Community.

Scan domains and return data based on trustworthy email best practices

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

Convert dmarc reports from xml to human-readable formats

Stalwart SMTP Server

Library containing Email related implementations in Elixir : dkim, spf, dmark, mimemail, smtp

Simple library to check an IP address against a domain's SPF record

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

Artisanal inbound emails for every web app using nodejs

Compact large SPF chains into flat blocks of IP addresses