Rawdash connector for Amazon SES — daily transactional email volume, deliverability, and sender reputation metrics from CloudWatch

Validates email deliverability via syntax, server checks, and demographic data.

n8n community node for MailSafePro Email Validation API - Enterprise email validation with risk scoring, SMTP verification, batch processing, and deliverability analysis

Atom M-A8 — Email Deliverability Preflight. Pure-computation checks for SPF/DKIM/DMARC, bounce rates, spam signals, and subject-line heuristics before a send.

A lightweight and reliable email validator that focuses on validating the format (syntax) of email addresses, ensuring compliance with standard email patterns. Does not verify email deliverability or functionality.

Official TypeScript SDK for the Email Deliverability Intelligence API

SendByte MCP server: let AI agents send email and manage sending domains, templates, and deliverability through SendByte.

Opportify provides data-enrichment insights: validate email deliverability and analyze IP addresses.

SuperSend MCP server and CLI — manage contacts, campaigns, senders, and deliverability via the V2 API

Ready MCP Server — send SMS, manage contacts, run campaigns, and check deliverability from any AI assistant. One-click integration.

Live email verification (syntax, MX, disposable, role-based, catch-all and a live SMTP mailbox probe) as an MCP tool and a pay-per-call x402 endpoint. Returns VALID/RISKY/INVALID + a deliverability score — without sending any email. For AI agents and list

Postwave command-line interface — migrations, deliverability diagnostics, voice-trained sequences, subscribers, forms, campaigns, and more. Used standalone or in agent workflows.

Haraka plugin that validates recipients against Qmail::Deliverable

Verify email deliverability via syntax checks and live SMTP handshake — catch bad addresses before you send

MCP server for Vouch — verify email deliverability (syntax, MX, live SMTP, catch-all) with your Vouch API key.

A messaging / communications service. Delivers a `Message` to a `Recipient` over a `CommsChannel` (email today; SMS / Slack / WhatsApp / push later), with deliverability concerns (suppression, audit log) handled centrally. Consumed as a library/service by

A lightweight and reliable email validation library for checking email format, domain, and deliverability.

Email Validation & Verification JSON API for Developers. Simple REST API measuring email deliverability & quality

MailTest CLI — email deliverability testing from the command line

Tiny, dependency-free client for the MailGuard email-verification API: syntax, MX, disposable & role detection, typo suggestions, and a 0–100 deliverability score.