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email

Tiny Go client for Postmark's SpamCheck API: submit a raw email, get its SpamAssassin spam score and matched-rule breakdown. No account or API key required.

DMARC library and milter module implemented in Python.

amavis is a high-performance email content filter framework written in Perl.

terminal e-mail client and e-mail client library https://meli-email.org

unsubd.dev — stateless Go service that executes newsletter unsubscribes on your behalf, bypassing DNS sinkholes

Preserve your emails for with this open-source self-hostable email archive!

Simple and complete declarative NixOS Mailserver setups

Multi-mailbox IMAP/SMTP control plane. One YAML, N accounts, one bearer-auth gate. Unified inbox across Gmail/Outlook/iCloud/mailo/inbox.lv/whatever — search, read, mark, send. Reader mode strips HTML chrome for LLMs. Streamable-HTTP MCP server + REST API on one port. Ships as a Docker image.

Transform your e-mail newsletters into webpages and an RSS feed. Uses pico as a front end.

TLS-enabled mail retrieval (POP3/IMAP/ETRN/ODMR) and forwarding (SMTP/LMTP/MDA) agent.

Note the Git branches: legacy_6x (6.5.x release maintenance) and next (mid-term future 7.x.x development)

Un service web en Flask/Python pour analyser les enregistrements MX d’un domaine et la bannière SMTP afin d'identifier le serveur SMTP utilisé et de détecter l'hébergeur mail associé.

Declarative, idempotent mail server configuration script

AI assistant for the GNOME Evolution mail client — summarize incoming messages and draft replies with your choice of LLM.

Email Validator web service validates email addresses: https://email-validator.pommalabs.xyz/

Liquimail implements glue code to use Liquid templates with MailKit: https://liquimail-docs.pommalabs.xyz/

Mail protocol for the small web https://misfin.gitlab.io/

Docker container that checks mail inbox for mail of defined sender and forwards mail to group of receivers

Better text/plain for recent Apple Mail

A cross-platform, open-source GUI tool for syncing emails between email providers using the IMAP protocol. Mail Hermit runs locally on your computer and uses only your computer to securely transfer your emails from one provider to another.