Validate, standardize, and geocode postal addresses worldwide. Identify and correct individual address components, assess deliverability, and return formatted addresses with latitude/longitude coordinates and Google Place IDs. Determine whether an address

Tells your agent whether a number is safe to call or text right now. Local stdio shim for the hosted VeriRoute Intel MCP server — live carrier, CNAM, spam, and SMS-deliverability checks.

Email deliverability on your own SES account — sending, delivery feedback, suppression and reputation. The layer you would otherwise rent from an ESP.

n8n community node for Warmbly: cold email, mailbox warmup, unibox, CRM, deliverability and webhooks. Self-hostable.

A comprehensive email validation library with format, DNS, and deliverability checking

MCP server: email safety for AI agents: scan inbound email for 'AI agent phishing' (prompt-injection/spoof) before acting, and outbound email for secret/PII leaks + deliverability before sending. Deterministic, free, no LLM.

Shared types, config, and reporting for arrivd deliverability modules

The most complete MCP server for the Resend API — send emails, manage domains, contacts, broadcasts, templates, webhooks, plus a unique debug/diagnostics layer (deliverability analysis, DNS troubleshooting, email inspection).

Framework-free transactional email core: provider drivers, deliverability records and the seams that let a laptop and a hosted platform share them.

Free, open-source company + contact enrichment — turn a domain, URL or email into a profile: name, description, logo, emails, phones, socials, address, tech stack, DNS/SPF/DMARC/DKIM deliverability, RDAP registration, key-page discovery and email-pattern

Official Maielr Node.js SDK — send transactional email with enterprise-grade deliverability

Email deliverability auditing library. Checks SPF, DKIM, DMARC, MX, blacklists, TLS, and domain age. Zero dependencies — pure Node.js built-ins.

Email deliverability audit — SPF, DKIM, DMARC, BIMI, MTA-STS checks in one command

Lints GoPhish-format email templates for deliverability, tracking, merge tags, and spam triggers.

Open-source cold email delivery protocol SDK for Node.js. Handles rotation, throttling, warm-up, bounce processing, and deliverability engineering behind init() + send().

Verify email deliverability without sending mail. Syntax, MX lookup, SMTP probe, catch-all detection, disposable & role-account flags. Score 0-100 per email.

MCP server for ParseBounce — check email bounces, complaints, suppressions and deliverability stats for AWS SES, SendGrid, Mailgun, SparkPost, Postmark and Mandrill from Claude, Cursor, VS Code or any MCP client.

n8n community node for Bulk Email Verifier & Finder - Mailbox Exists, SPF/DKIM/DMARC — backed by the Apify Actor apivault_labs/email-deliverability-checker. No login. Pay-as-you-go via Apify.

A liveable mail server and library — single binary, Rust-native, with a built-in inspector for DNS, DKIM, and deliverability. Name reservation; the engine is still brewing.

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