Sendinel alternatives

1

RuSender

by Rusender

A

Manage email campaigns, contacts and deliverability analytics in RuSender from an AI assistant.

2

Sendhustle

by Achlesha

C

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

3

Sendly

by sendly.now

B

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

4

Bottled

by bottled.email

B

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

5

Plumail

by plumail.fr

C

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

6

Email Inbox API + Sending by Sendmux

by Sendmux

A

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

7

Outlook Assistant

by littlebearapps

A

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

8

MCP

by sendraven.ai

B

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

9

Ecc

by karljsamuel

B

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

10

MailMask

by mailmask.studio

A

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

11

Posylai — AI Email Builder

by posylai.ru

A

Build responsive HTML email campaigns from any brand website: design, QA, export.

12

Snov

by pipeworx-io

B

Snov.io MCP — B2B email finder + contact enrichment + domain search (snov.io)

13

CLI

by kanta.dev

C

Kanta Verify, Find, and Database: email verification, email finding, and B2B contact search.

14

DashaMail

by dashamail.ru

B

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

15

AIsa Creator Discovery

by aisa.one

B

Find creators from a seed profile or a brief, and look up their contact email.

16

Website Email Extractor, Phone & Contact Finder (CSV, Sheet)

by Nero-Engine

C

Published emails, phones and social profiles for every website in a list, CSV or Google Sheet.

17

Space Monkey Mailchimp Dashboard

by igods.com

C

Mailchimp engagement intelligence for AI agents: campaign analytics and audience insights.

18

Gro

by usegro.co

C

Manage subscriptions, customers and email campaigns in your Gro account.

19

Voix contact

by lbm.co

C

Reach a human at Voix: submit the studio contact form and get a reply by email.

20

OpenOSINT

by OpenOSINT

C

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

21

Agent-Native Mail

by BuilderIO

A

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

22

Atomic Mail

by Atomic-Mail

A

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

23

Local

by local-mcp.com

C

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

24

Impreza Host

by imprezahost

B

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