453 Open source projects that are alternatives of or similar to smf-spf

Mentally computable verification codes for email aliases implemented as a postfix tcp table or milter; uses asyncio.

The best free email forwarding for custom domains. Visit our website to get started (SMTP server)

A parser for SPF and DMARC DNS records

Postfwd plugin for blocking international spam botnets based on geographical location of IP addresses used to login to postfix via sasl.

Postfix filter/hook to automatically encrypt outgoing emails with PGP/GPG

Postfix SMTP relay docker image

Command line utility and a Node.js library for email authentication

Virtual Mailbox Administration

⚡️Arduino Mail Client Library to send, read and get incoming mail notification for ESP32, ESP8266 and SAMD21 devices. The library also supported other Arduino devices using Clients interfaces e.g. WiFiClient, EthernetClient, and GSMClient.

A web-based user management tool for Postfix and Dovecot that is easy to use and still very powerful.

Mail hosting made simple

Hermes Secure Email Gateway is a Free Open Source Ubuntu 18.04 or 20.04 Server based Email Gateway that provides Spam, Virus and Malware protection, full in-transit and at-rest email encryption as well as email archiving. It features the latest email authentication techniques such as SPF, DKIM and DMARC.

Compact large SPF chains into flat blocks of IP addresses

Extracts email address from an arbitrary text input.

Mail new tasks to your TaskWarrior inbox

Email address obfuscation for Neos CMS

Email library for Crystal. Testable, adapter-based, and catches bugs for you. Comes with an adapter for SendGrid.

No description or website provided.

Docker container running Apache running on Ubuntu, Composer, Lavavel, TDD via Shippable & CircleCI

Sublime package for the MJML

Software to provision a mail server with users from a Windows or Samba 4 Active Directory

Backitup enables the cyclical creation of backups of an IoBroker / Homematic installation

End-to-end encrypted email for the mesh networking age

Postfix MTA Docker image

Magenic's automation quick start

Oracle PL/SQL API for Mailgun

A Hugo theme component to cloak email adresses

Sending HTML email using Go 💌

A Django-powered contact form

Monorepo for small Go modules maintained by Tawesoft

Send emails to recipients and groups from Alfred

😎 Chrome extension to fetch the email ID of a user even if they haven't made it public on their GitHub profile

Muil is a framework to build, maintain and manage dynamic templates using React and tools you know and love

Command-line interface for email management

An unofficial desktop client for ProtonMail done with electron nativefier

Design your own email templates w/ visual composer directly inside the Strapi admin panel and send composed emails programmatically from your controllers / services.

This package provides convenient methods to integrate the NeverBounce API into your project.

Group Office groupware and CRM

A REST API for checking if an e-mail address is disposable (a.k.a. throwaway). https://isemaildisposable.webgazer.io

A Gulp workflow for maintainable email templates

Laravel MJML offers support for rendering MJML syntax into in-line HTML that can be sent within mails.

A self-hosted mail forwarding API microservice

A fast, lightweight plugin that saves emails sent by your WordPress website.

NodeJS app to send form submissions by email

A common API for Vapor to integrate with different email providers

Mailmask - easy stop unwanted email. Unlimited, free temporary email addresses, all forwarding to your real email address. Beat spam, protect your privacy.

MJML starter kit, create responsive emails very quickly using MJML and this productive toolchain

A simple, gulp powered framework to develop and test responsive emails.

A lightweight SMTP mail library

A throwaway smtp server with API

An SMTP server that converts emails into Pushover notifications.

Ansible role for Postfix MTA

The official MailerSend Laravel Driver

Simple Keylogger with smtp to send emails on your account using python works on linux and Windows

Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.

Convert RSS feeds to emails

isBizMail tells you whether a given email address belongs to a free email account provider (gmail.com, yahoo.es, yandex.ru etc) or not.

Mail connectors for Camunda Platform 7

Google Apps Script for Gmail to filter and sort email from GitLab

🐳 A lightweight non-root Docker image for an Exim mail relay, based on Alpine Linux.