#1
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
18K starsJun 15, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add Foundry376/MailspringAlternatives
Neomutt alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Neomutt
✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat
100
Quality
89
Trust
3.7K
Stars
#2
Dovecot mail server
1.2K starsJun 12, 2026 pushproductivity-automationCEmail
$ npx skills add dovecot/core#3
terminal mail client, mirror of https://git.meli-email.org/meli/meli.git https://crates.io/crates/meli
868 starsJun 12, 2026 pushproductivity-automationRustEmail
$ npx skills add meli/meli#4
A cross-platform .NET library for IMAP, POP3, and SMTP.
6.8K starsJun 12, 2026 pushproductivity-automationC#Email
$ npx skills add jstedfast/MailKit#5
✉️ Composable all-in-one mail server.
6.0K starsMay 26, 2026 pushproductivity-automationGoEmail
$ npx skills add foxcpp/maddy#6
CLI to manage emails
6.4K starsJun 12, 2026 pushproductivity-automationRustEmail
$ npx skills add pimalaya/himalaya#7
A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.
2.0K starsJun 15, 2026 pushproductivity-automationC#Email
$ npx skills add jstedfast/MimeKit#8
Bichon – A lightweight, high-performance Rust email archiver with WebUI
1.8K starsJun 11, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add rustmailer/bichon#9
Rapid spam filtering system.
2.5K starsJun 16, 2026 pushproductivity-automationCEmail
$ npx skills add rspamd/rspamd#10
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.
15K starsMay 24, 2026 pushproductivity-automationPythonEmail
$ npx skills add mail-in-a-box/mailinabox#11
BillionMail 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
15K starsJun 11, 2026 pushproductivity-automationGoEmail
$ npx skills add Billionmail/BillionMail#12
A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail
11K starsJun 9, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add maillab/cloud-mail#13
Insular email distribution - mail server as Docker images
7.3K starsMay 31, 2026 pushproductivity-automationPythonEmail
$ npx skills add Mailu/Mailu#14
MIME mail encoding and decoding package for Go
517 starsJun 7, 2026 pushproductivity-automationGoEmail
$ npx skills add jhillyerd/enmime#15
Decentralized private messenger with chat-shared tools and games for Desktop
1.5K starsJun 16, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add deltachat/deltachat-desktop#16
📧 Easy to use, yet comprehensive library for sending mails with Go
1.4K starsJun 15, 2026 pushproductivity-automationGoEmail
$ npx skills add wneessen/go-mailHow to choose
When should you switch?
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 Neomutt if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.