Agent Email List — Free SMTP Relay for AI Agents alternatives

1

Mailbox

by psyb0t

A

Self-hosted MCP server for unified IMAP/SMTP mailbox access: read, list, and send email.

2

Impreza Host

by imprezahost

B

No-KYC offshore hosting an AI agent runs end-to-end: no-email signup, crypto, VPS, deploy, Tor.

3

Fluxmail

by churichard

B

Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.

4

MCP

by sendraven.ai

B

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

5

MX Probe

by mxprobe.dev

B

Email verification for AI agents: send, hold or kill with the reason. Signup and credits by API.

6

Ecc

by karljsamuel

B

Unified MCP server for Email, Calendar & Contacts (Google, M365, Zoho, IMAP/SMTP, DAV).

7

Your Mail

by wildsurfer

B

Read-only, self-hosted MCP access to IMAP email, mirrored locally and indexed by notmuch.

8

AgentiSend

by fortuneflick

A

Transactional email API for AI agents: verified domains, a per-sender budget, and a kill switch.

9

MailMask

by mailmask.studio

A

Email for agents: domains, aliases, IMAP mailboxes, DNS, sending and webhooks via one API key.

10

IMAP MCP Pro

by Temple-of-Epiphany

A

Production IMAP & SMTP for Claude: multi-account email search, triage, send, and spam checks.

11

Shaka

by shaka.rw

B

Company email for Rwanda. Read and send mail from a Shaka mailbox over OAuth or an API key.

12

DashaMail

by dashamail.ru

B

Email marketing for Russian businesses: lists, campaigns, reports, transactional email.

13

Plumail

by plumail.fr

C

Manage a Plumail email workspace: subscribers, segments, campaigns, transactional sends and stats.

14

SentientMail

by sentientmail.com

C

AI-first email platform: templates, audiences, journeys. Sends real email when the key allows it.

15

OpenOSINT

by OpenOSINT

C

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

16

Agent-Native Mail

by BuilderIO

A

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

17

Atomic Mail

by Atomic-Mail

A

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

18

Email Inbox API + Sending by Sendmux

by Sendmux

A

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

19

Local

by local-mcp.com

C

Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.

20

Outlook Assistant

by littlebearapps

A

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

21

MCP

by dechonet.com

A

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

22

MCP Emails

by mcpemails.com

A

Never-stored live email: read, send, organize, schedule and auto-triage Gmail or any IMAP mailbox.

23

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.

24

Agent Email

by UseJunior

A

Local email connectivity for AI agents — read, draft, send, and organize Outlook mail via MCP