:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
$ npx skills add Foundry376/MailspringAlternatives
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Sieve Script Editor
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
$ npx skills add Foundry376/MailspringMJML: the only framework that makes responsive-email easy
$ npx skills add mjmlio/mjmlA Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail
$ npx skills add maillab/cloud-mail✉️ Send e-mails with Node.JS – easy as cake!
$ npx skills add nodemailer/nodemailera list of disposable email domains
$ npx skills add disposable-email-domains/disposable-email-domainsOpen YouTube / Video browser-extension [top~1] Enrich your experience&choice!🧰Smart features📌set&forget📌250+tweaks - Longest-standing. Join🧩us?👨👩👧👧 ⋮ {playback|discovery|extra player buttons|quality|codec|full tab|full screen|no distraction|shorts}
$ npx skills add code-charity/youtube:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!
$ npx skills add nylas/nylas-mailDecentralized private messenger with chat-shared tools and games for Desktop
$ npx skills add deltachat/deltachat-desktopJuice inlines CSS stylesheets into your HTML source.
$ npx skills add Automattic/juice:postbox: Gmail desktop app for macOS, Windows & Linux (formerly Gmail Desktop)
$ npx skills add zoidsh/meruThe Official Twilio SendGrid Led, Community Driven Node.js API Library
$ npx skills add sendgrid/sendgrid-nodejsJavaScript plugin for finding links in plain-text and converting them to HTML <a> tags.
$ npx skills add nfrasser/linkifyjsThe classic email sending library for PHP
$ npx skills add PHPMailer/PHPMailerThe open-source communication infrastructure for agents and products
$ npx skills add novuhq/novuMail-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.
$ npx skills add mail-in-a-box/mailinaboxBillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr
$ npx skills add Billionmail/BillionMailHow to choose
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Sieve if it already passes your workflow test and repository review.
Next step
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.