MailFlat alternatives

1

Agent Email

by UseJunior

A

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

2

EmptyInbox

by cnohall

B

Zero-config disposable email inboxes for AI agents: create, read mail, await verify codes.

3

Postfleet

by postfleet.ai

A

Give an AI agent its own email address: send, reply, read, and wait for mail.

4

MCP

by openagentemail

B

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

Disposable email inboxes for AI agents: create, wait for mail, extract verification codes

6

Agent-Native Mail

by BuilderIO

A

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

7

Atomic Mail

by Atomic-Mail

A

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

8

MCP Emails

by mcpemails.com

A

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

9

Fluxmail

by churichard

B

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

10

Shipmail

by shipmail-to

A

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

11

MCP

by sendraven.ai

B

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

12

SendGrid MCP Server

by deyikong

B

MCP server for SendGrid's v3 API: email marketing, transactional mail, templates, and analytics.

13

MX Probe

by mxprobe.dev

B

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

14

Ray notifications

by gege-mn

A

Send email, push, Slack, Discord, Telegram and webhook notifications and manage templates with Ray.

15

MCP

by sendsoon

B

Send email, look up public IP information, and convert files to Markdown through SendSoon.

16

Email

by wraps.dev

A

Query SES send history, delivery events, domains and suppressions, and send from your AWS account.

17

Mailappmcp

by aernouddekker

A

MCP server for macOS Mail.app — gives Claude native email access via AppleScript

18

Lettio MCP

by lettio.eu

A

Private, EU-hosted email for AI agents over JMAP: read, search, reply, organize, send.

19

Email Footer Law Lint

by jmshinhwa

A

Fourteen checks on an HTML email footer: CAN-SPAM postal address and 10-business-day opt-out, CASL's

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

21

Assistant Mail MCP

by AssistantMail

B

Agent email with allowlist and consent via AssistantMail.

22

Your Mail

by wildsurfer

B

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

23

Bird

by bird.com

A

Send and receive across email, SMS, WhatsApp, and voice. One API, one contract.

24

SMTP

by ni-c

B

MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation