A curated set of tools developers reach for when building email features. Includes deliverability and verification (DNSBL, DMARC, SPF/DKIM, spam-trap scoring), drag-and-drop email design tools, and the ESP connectors and MCP servers that wire it all together. Most are SaaS with free tiers; a few are open-source.
Optimize customer engagement with multichannel messaging, CRM integration, and AI-driven analytics, unifying marketing, service, and data for B2C brands.
Email design tool offering over 1700 templates, interactive AMP support, drag & drop and code editing, built-in AI, team collaboration, pre-send testing, and integration with 90+ email providers.
All-in-one platform for creating, automating, and sending marketing emails, building landing pages, running ad campaigns, and analyzing audience engagement.
Email list validation tool: Simple, fast & accurate. DeBounce service allows you to upload and validate lists of email addresses quickly and in a secure way. All you have to do is upload an email list to it's web interface. DeBounce also offers API.
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information.
ZeroBounce is an email validation software that cleans your email list by removing invalid emails, reducing the risk of bounces and protecting your sender reputation. It also removes known email complainers and spam traps from your list.
This list is maintained by min8t.com, which publishes open-source MCP tools for email deliverability (@deliveriq/mcp on npm) and a freemium email infrastructure platform.
