954 Open source projects that are alternatives of or similar to mailtrap

Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

DKIM (DomainKeys Identified Mail) Key

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

A simple (but correct) library for validating email addresses. Supports mail addresses as defined in rfc5322 as well as the new Internationalized Mail Address standards (rfc653x). Based on https://github.com/jstedfast/EmailValidation

An automated e-mail OSINT tool

CLI tool for concealing e-mails in a file by replacing their domain

A lightweight SMTP mail library

A graphical threads-with-tags style, lightweight and fast, e-mail client for Notmuch

The one and only django app to receive & send mail with templates and multiple configurations.

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

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

Ido is a clean, simple, Polymail-inspired theme for Mailspring

Send emails using Django template system

📫 SMTP Server + Web Interface for viewing and testing emails during development.

📩🛡 Email privacy. Anonymously send and receive with alias forwarding.

A cross-platform IMAP library for .NET, supporting .Net 2.0 - 4.5, Mono and Windows Phone

A Gatsby email *application*

A fully tested email parser for PHP 7.2+ (mailparse extension wrapper).

Command-line interface for email management

MailMergeLib is a mail message client library which provides comfortable mail merge capabilities for text, inline images and attachments, as well as good throughput and fault tolerance for sending mail messages.

Yii 2 swiftmailer extension.

💌 A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

The official PHP library for Postmark.

Insular email distribution - mail server as Docker images

The best free email forwarding for custom domains (Web Server)

🐝 experimental terminal mail client, mirror of https://git.meli.delivery/meli/meli.git https://crates.io/crates/meli

Adds email sending capability to a Nuxt.js app. Adds a server route, an injected variable, and uses nodemailer to send emails.

Recursively copy all e-mail messages and folders from one IMAP account to another.

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

⚙️ A GitHub Action to send an email to multiple recipients

Official Node.js library for the Postmark API

MIME mail encoding and decoding package for Go

Preview Laravel Mailables and notifications in your browser.

A lightweight PHP SMTP mail sender

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

An unofficial desktop client for ProtonMail done with electron nativefier

Sieve Script Editor

⚡️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.

Dovecot mail server

MFCMAPI

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

Mail4Delphi uses the Indy component to send the email.

This library integrates Postal with the standard Laravel mail framework.

IP-Biter: The Hacker-friendly E-Mail (but not only) Tracking Framework

Simple and easy to use catch-all SMTP mail server and debugging tool

基于 Net.Mail 封装的发送邮件工具类。仅需一行代码，发送邮件。支持自定义邮件发出邮箱、发出方名字等。 支持SSL加密发送。 多个接收人、抄送人。支持群发独显。 支持添加附件、多个附件。 目前大部分主流邮箱全支持。

Engine for running Node.js apps on Nanobox

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

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

Magenic's automation quick start

[DEPRECATED] - Official Node.js client library for the Context.IO Email API

Send mail from Laminas or Mezzio using external mail services.

Sending HTML email using Go 💌

A Go library for using ApproveAPI

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

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

A self-hosted mail forwarding API microservice

Fake SMTP server that prints emails to stdout

Audion is a Chrome extension that adds a Web Audio panel to Developer Tools. This panel visualizes the web audio graph in real-time.

Temporary edit external crates that your project depends on