Email Deliverability Audit API alternatives

1

e2a — email for AI agents

by Mnexa-AI

A

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

2

e2a — email for AI agents

by e2a.dev

A

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

3

IntoDNS.ai DNS & Email Security Scanner

by intodns.ai

B

DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.

4

ContrastAPI

by contrastcyber.com

B

55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.

5

MisarMail MCP Server

by Misar-AI

A

Send transactional email, run campaigns, manage contacts and automations, audit deliverability.

6

BlackVeil DNS & Email Security Scanner

by blackveilsecurity.com

B

DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

7

Palisade

by palisade.email

A

Monitor and manage email authentication (SPF, DKIM, DMARC, MTA-STS, BIMI) for your domains.

8

Palmyr

by palmyr.ai

B

Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.

9

emailmd

by emailmd.dev

A

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

10

Emailens MCP

by emailens

A

Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.

11

Dechonet

by dechonet.com

A

20 domain recon tools for AI agents: DNS, SSL, headers, email, subdomains, lookalikes, changes.

12

Shipmail

by shipmail-to

A

Shipmail MCP server for AI agent custom-domain email inboxes with REST API and webhooks.

13

smbCloud Mail & Auth

by smbcloudXYZ

A

Email infrastructure and authentication for developers: domains, inbox routes, auth apps, deploys.

14

Qmailing

by qmailing.com

A

AI agents read & send email, manage mailboxes, domains and webhooks via the QMailing API.

15

Monacloud

by monacloud.vn

B

Buy .vn/intl domains in VND, deploy apps, Postgres, email, VietQR pay — Vietnam MCP for AI agents

16

Mailkite

by mailkite.dev

A

Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite

17

nintact

by nintact.com

B

Contact forms that actually arrive. No SPF/DKIM, no SMTP. AI sorts them and drafts the reply.

18

Mailbuttons (mbag.ai)

by mailbuttons.com

A

Governed email for AI agents (Mailbuttons / mbag.ai): sandbox inboxes, policy gate, audit log.

19

GBG Loqate - Reach

by gbgplc

B

Verify addresses, email addresses, and phone numbers with confidence scores.

20

Netintel

by kjgueye

B

MCP server for NetIntel — DNS, SSL, WHOIS, email security, OSINT via x402 micropayments

Email infrastructure for AI agents: send, authenticate domains, track delivery, diagnose issues.

22

Email Finder

by superagnt.com

A

Email finder + verifier for AI agents: find work emails by name and company, check deliverability.

23

OpenOSINT

by OpenOSINT

C

AI-powered OSINT agent & MCP server. 16 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.

24

Agent-Native Mail

by BuilderIO

A

Agent-Native Superhuman - email client with keyboard shortcuts and AI triage