#1
The classic email sending library for PHP
22K starsJun 6, 2026 pushproductivity-automationPHPEmail
$ npx skills add PHPMailer/PHPMailerAlternatives
Relay alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Relay
โ๏ธ Open-Source Email API for Developers. Cloud & Self-hosted Alternative to SES, Mailgun, SendGrid.
85
Quality
85
Trust
635
Stars
#2
Anonymous email forwarding
4.7K starsMay 28, 2026 pushproductivity-automationPHPEmail
$ npx skills add anonaddy/anonaddy#3
:mailbox: Cross-language temporary (disposable/throwaway) email detection library. Covers 55 734+ fake email providers.
1.9K starsJun 16, 2026 pushproductivity-automationPHPEmail
$ npx skills add FGRibreau/mailchecker#4
PHP Email address validator
12K starsMar 20, 2025 pushproductivity-automationPHPEmail
$ npx skills add egulias/EmailValidator#5
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#6
Converts CSS styles into inline style attributes in your HTML code.
947 starsJun 14, 2026 pushproductivity-automationPHPEmail
$ npx skills add MyIntervals/emogrifier#7
a mailer library for Rust
2.2K starsJun 12, 2026 pushproductivity-automationRustEmail
$ npx skills add lettre/lettre#8
A fully tested email parser for PHP 8.0+ (mailparse extension wrapper).
992 starsMay 14, 2026 pushproductivity-automationPHPEmail
$ npx skills add php-mime-mail-parser/php-mime-mail-parser#9
FiercePhish is a full-fledged phishing framework to manage all phishing engagements. It allows you to track separate phishing campaigns, schedule sending of emails, and much more.
1.4K starsJan 9, 2024 pushproductivity-automationPHPEmail
$ npx skills add Raikia/FiercePhish#10
Object-oriented, fully tested PHP IMAP library
918 starsMar 16, 2026 pushproductivity-automationPHPEmail
$ npx skills add ddeboer/imap#11
The Official Twilio SendGrid PHP API Library
1.5K starsFeb 22, 2025 pushproductivity-automationPHPEmail
$ npx skills add sendgrid/sendgrid-php#12
:white_check_mark: A Go library for email verification without sending any emails.
1.6K starsFeb 26, 2026 pushproductivity-automationGoEmail
$ npx skills add AfterShip/email-verifier#13
๐ Build and send emails using React
19K starsJun 12, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add resend/react-email#14
MJML: the only framework that makes responsive-email easy
18K starsJun 12, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add mjmlio/mjml#15
A Cloudflare-based email service | ๅบไบ Cloudflare ็้ฎ็ฎฑๆๅก | Cloudflare Email ้ฎ็ฎฑ Mail
11K starsJun 9, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add maillab/cloud-mail#16
Experience email the way you want with Mail0 โ the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord
11K starsMay 26, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add Mail-0/ZeroHow 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 Relay if it already passes your workflow test and repository review.
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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.