Mailbox alternatives

1

Fluxmail

by churichard

C

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

2

Ecc

by karljsamuel

B

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

3

Lettio MCP

by lettio.eu

A

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

4

Agent Email List — Free SMTP Relay for AI Agents

by ai.agentemaillist.com

B

Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.

5

IMAP MCP Pro

by Temple-of-Epiphany

A

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

6

Shaka

by shaka.rw

B

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

7

Mailbox MCP

by mailbox-mcp.com

B

Read, send, file and search email in any Gmail, Microsoft 365 or IMAP mailbox, plus its calendar.

8

MCP

by sendraven.ai

B

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

9

MX Probe

by mxprobe.dev

B

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

10

Ray notifications

by gege-mn

A

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

11

Email

by wraps.dev

A

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

12

MCP

by openagentemail

B

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

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

14

Bird

by bird.com

A

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

15

Mailtea

by mailtea.app

A

Send email and newsletters with Mailtea over MCP, plus skills for email and website design.

16

MailMask

by mailmask.studio

A

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

17

Siglio

by esigndev.com

C

MCP server for Siglio. Lets an AI assistant send documents for e-signature by email or text.

18

Sendhustle

by Achlesha

C

Send and manage email via the SendHustle API — emails, domains, contacts, audiences, campaigns.

19

Anjal

by anjal.app

B

Email inboxes and calendars for AI agents: send, receive, search, draft and schedule.

20

Sendly

by sendly.now

B

Send email, manage contacts, campaigns and workflows, and diagnose deliverability in Sendly.

21

Bottled

by bottled.email

B

Branded email on your own domain: send, reply, search, aliases, contacts and campaigns.

22

Plumail

by plumail.fr

C

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

23

SentientMail

by sentientmail.com

C

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

24

MyShop - solutions for restaurants

by itsikzizov

C

Match a restaurant to a MyShop solution and send a real, signable $89/month quote by email.