1264 Open source projects that are alternatives of or similar to Dart Basic Utils

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

Mosaico - Responsive Email Template Editor

Simple DNS over HTTPS Server

Public Zone Database

DNS Sub-domain brute forcer, in Python + gevent

Collection of quality safety articles. Awesome articles.

DNS zone file analyzer targeted at TLD zones

基于 libcurl 的 IO 多路复用 HTTP 框架，适用于 iOS 平台，支持 HTTP/HTTPS/HTTP2/DNS(SNI)

Handling time-stamps and date-stamps in file names

CSS styled emails without the hassle.

mailing lists - the unix way

Domain name permutation as a service

Integrate Kubernetes and pfSense

Simple UDP honeypot script

Testable, composable, and adapter based Elixir email library for devs that love piping.

Verschlüsselung von E-Mailadressen zum Schutz vor Spam

Notification dispatch library for Elixir applications

仿 Linux shell 命令的邮箱命令行客户端

The magma server daemon, is an encrypted email system with support for SMTP, POP, IMAP, HTTP and MOLTEN,. Additional support for DMTP and DMAP is currently in active development.

A simple, lightweight socks5 server for Unix (Linux/BSD/macOS)

A Java 8 string manipulation library.

📮 Dialogflow + Sendgrid = AI Mailbox

The best (?) date range picker control for OS X.

An implementation of TLS and related specifications in Common Lisp

Automagic Docker DNS for local development

The SimpleLogin back-end

Send emails using Django template system

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

Converts Strings into NSAttributedStrings using an HTML-like markup language.

A HomeMatic CCU Addon for sending Emails

准确、CDN友好

dnslol is a command line tool for performing lots of DNS lookups.

Adversary Simulation Framework

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.

The email service for when just "hey.com" isn't enough.

Making Ruby Strings Powerful

Network Testing Framework

A PHP library for X.509 public key certificates, attribute certificates, certification requests and certification path validation.

A DNS abstraction for PHP

A PHP port of https://github.com/vhf/confusable_homoglyphs

Python script that collects SSL/TLS information from hosts

A secure and PGP enabled webmail module for Phosphorus Five

A Node.js library to send all kinds of transactional notifications.

💌基于 Vue -> Koa2 -> Mongoose 的留言时间轴，记录美好时光。

Time, Date and Timezone library for lua

All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.

CloudFlare Dynamic DNS client

DynDNS Updater for Gandi LiveDNS REST API

Elixir package for working with X.509 certificates, Certificate Signing Requests (CSRs), Certificate Revocation Lists (CRLs) and RSA/ECC key pairs

⏰ A straightforward date and time formatter in <1kb

Sending template emails in Node.JS

A mirrored repository

Use Let's Encrypt on private (LAN) servers using DNS validation

A cross-platform network-wide ad/site blocker with a simple web control panel.

In-depth Attack Surface Mapping and Asset Discovery

Network Security Vulnerability Manage

ioc2rpz is a place where threat intelligence meets DNS.

Java String Interpolation Plugin

A terminal based mail user agent based on notmuch

Blazingly fast measure string width in pixels on the server in Javascript (Node.Js)