Email Waterfall Orchestrator 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

Sendraven

by sendraven.ai

B

Email infrastructure for AI agents: send, read replies as threads, campaigns, per-key limits.

4

Notifykit

by sathergate

A

Unified notifications for Next.js. Multi-provider SMS, email, and push.

5

AgentiSend

by fortuneflick

A

Email API for apps and AI agents: budgets per key, a kill switch, refusals that name the fix.

6

Palmyr

by palmyr.ai

B

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

7

Mailoo - Email MCP Server

by Bitfloo

A

Email MCP server for AI agents: IMAP/SMTP, Gmail, Outlook, calendar, ManageSieve, AI triage, OAuth2.

8

emailmd

by emailmd.dev

A

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

9

OpenOSINT

by OpenOSINT

C

AI-powered OSINT agent & MCP server. 21 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.

10

Inbox Zero

by elie222

A

Search Gmail and Outlook, save drafts, manage email rules, and view email stats.

11

Agent-Native Mail

by BuilderIO

A

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

12

Atomic Mail

by Atomic-Mail

A

Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

13

LMCP

by local-mcp.com

B

Mac & Windows: let ChatGPT, Claude & Cursor use your email, calendar, iMessage, Teams, files.

14

Email Inbox API + Sending by Sendmux

by Sendmux

A

AI email inbox and sending tools with attachments, search, live events, and webhooks.

15

Backlot

by brekkylab

A

Local emulator for Slack, Gmail, Drive, GitHub, Jira, Notion, S3 and more, with per-document ACLs

16

Email

by codefuturist

B

IMAP/SMTP email MCP server — 52 tools, stdio + HTTP, IMAP IDLE push, multi-account, AI triage.

17

Agenticmail

by agenticmail

B

Real email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.

18

OpenOSINT

by SonoTommy

C

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

19

Imap

by nikolausm

A

IMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants

20

smbCloud Mail & Auth

by smbcloudXYZ

A

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

21

Outlook Assistant

by littlebearapps

A

Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.

22

Emailens MCP

by emailens

B

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

23

Openagentemail

by openagentemail

B

Unlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.

24

Email

by marlinjai

A

Unified email MCP server for Gmail, Outlook, iCloud, and IMAP with batch operations