Open-source, self-hosted email deliverability testing platform
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Jun 11, 2026 - Go
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email-deliverability
Here are 53 public repositories matching this topic...
Next generation SMTP mailer plugin for WordPress. Trusted by over 300,000 sites by WPExperts.io
wordpress email emails woocommerce smtp sendinblue gmail-api sendgrid-api mailgun-api email-deliverability
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Jun 5, 2026 - PHP
Collection of Postmark AI skills
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Feb 28, 2026
📧 Never end in spam with the world's most comprehensive email deliverability checklist
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May 10, 2024 - TypeScript
Email Deliverability Management Library - Email Authentication, Reputation Monitoring, Email List Hygiene, IP Warming Tools & Unified Interface to manage all.
email email-validation email-verification email-deliverability email-authentication email-reputation email-ip-warming
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Apr 10, 2025 - Python
MailboxValidator Ruby module enable users to block disposal email, detect free email and validate if an email is valid
ruby email-validation email-verification email-deliverability mailboxvalidator-api mailboxvalidator disposable-email-detection
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Dec 24, 2025 - Ruby
MailboxValidator CodeIgniter library enable users to block disposal email, detect free email and validate if an email is valid
codeigniter email-validation email-verification email-deliverability mailboxvalidator-api mailboxvalidator disposable-email-detection free-email-detection
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Dec 24, 2025 - PHP
Test your Email Deliverability by schedule and receive email reports.
email smtp deliverability email-deliverability email-testing deliverability-tools spam-checker spam-test
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May 23, 2023 - PHP
Build your own self-hosted cold email infrastructure — the open-source alternative to Smartlead/Instantly. Claude Code skill + full playbook.
mcp self-hosted sales-automation outbound lead-generation email-deliverability cold-email claude-code smartlead-alternative
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Jun 1, 2026 - JavaScript
MailboxValidator CodeIgniter4 library enable users to block disposal email, detect free email and validate if an email is valid
codeigniter email-validation email-verification email-deliverability mailboxvalidator-api mailboxvalidator disposable-email-detection free-email-detection
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Dec 24, 2025 - PHP
Open-source bulk email platform. Send 100K+ personalized emails via Gmail SMTP or AWS SES with tracking, analytics, smart throttling, and zero spam.
react nodejs docker open-source typescript email postgresql email-marketing self-hosted email-sender newsletter smtp aws-ses bulk-email campaign-management email-deliverability email-analytics email-tracking sendgrid-alternative mailchimp-alternative
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May 22, 2026 - TypeScript
Email-domain suppression list for progressive nonprofits — disposable services, typos, spam traps. Self-serve ActionKit import. CC0-licensed.
blocklist disposable-email cc0 actionkit email-deliverability nonprofit-tech email-suppression progressive-nonprofits
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Jun 10, 2026 - Python
A powerful IP Blacklist Remover and Checker tool by ApexSofteck that helps developers and system administrators detect blacklisted IPs, monitor reputation, and automate removal from DNSBL/RBL services to ensure secure communication and better email deliverability.
email-marketing spam-protection network-security dev-tools ip-reputation email-deliverability dns-blacklist server-security automation-tool cybersecurity-tools rbl-checker blacklist-checker ip-blacklist-remover smtp-security apexsofteck ip-cleanup
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Apr 9, 2026 - Python
MailboxValidator VB.Net library enable users to block disposal email, detect free email and validate if an email is valid
email-validation visualbasic email-verification email-deliverability smtp-validation mailboxvalidator-api mailboxvalidator
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Dec 24, 2025 - Visual Basic .NET
Cold email deliverability scanner — 400+ spam trigger words, dual scoring (deliverability + ICP clarity), clean rewrite. Claude Code skill.
email-marketing icp email-deliverability cold-email spam-checker claude-code b2b-outreach sales-outreach
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May 14, 2026 - Shell
Free DNS pre-flight checker — audit SPF, DKIM, DMARC before your email breaks
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Apr 26, 2026 - HTML
Free SMTP Relay for developers — send emails from any app, script or device. Zero cost. Zero limits.
nodejs python php docker-compose email mailer swiftmailer smtp developer-tools smtp-server relay-server email-api smtp-mail sendmail-smtp smtp-relay email-deliverability smtp-mailer transactional-email smtp-relay-server free-smtp
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Apr 1, 2026 - PHP
Laravel package to verify IPs against trusted DNSBL/RBL services, helping detect blacklisted sending servers and improve email deliverability.
laravel email-marketing dnsbl-checker ip-reputation email-deliverability blacklisted-ips blacklist-check rbl-checker
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Apr 15, 2026 - PHP
Superkabe is an email deliverability and sender reputation protection platform. We act as infrastructure armor, sitting between your enrichment data and your sending accounts to enforce safety protocols across your entire fleet.
email-marketing email-validation b2b outbound email-deliverability b2b-saas cold-email cold-outreach b2b-sales outbound-sales email-deliverability-check cold-outreach-tools
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Apr 25, 2026
Bulk email verification & bounce rate checker. Verify email lists, reduce bounces, clean CSV files. 9-point verification engine. Free tools + 5,000 free credits. Powered by Mailthentic.
email-validation email-verification email-checker email-deliverability email-validation-api bounce-rate bulk-email-verifier disposable-email-detection catch-all-detection spf-dkim-dmarc sender-reputation email-list-cleaning free-email-checker email-bounce-check mailthentic email-hygiene
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Apr 8, 2026
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