Market/Sending email/Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun

MCP server: One MCP server. Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun

MCP server: One MCP server.

Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun

Name: Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
Author: cybermax-tools

@cybermax-toolsMCP server · External

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

Sending emailv1.0.1

Freeno charge per call

One address for any MCP client. Your key stays in your Odel vault.

Safety · AI13%Low risk
Does · AIHigh impactMoney, code, deletes, messages
ConnectRemote · API keyStreamable HTTP
PopularityNo stars yetUpdated 10 Oct 2026
StatusAll clearAnswered Odel on 11 Oct

Overview Tools Trust Requirements Details Similar

What it does

Reads
Writes
High impact

At most: moves money, runs code or commands, deletes data, or sends messages for you.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

What it asks for at sign-in

Access to	Read	Change
Full api access	Not stated: full_api_access

From the sign-in at console-backend.apify.com, as the endpoint publishes it. You approve it there.

Tools

None listed · checked 11 Oct 2026

Odel could not list its tools without signing in.

Try it in the Inspector

No README yet. What Odel knows about this module is on the right.

Checked by Odel

Endpoint answered on 11 Oct 2026
Registry verified the namespace dev.workers.cybermax-tools.cybermax

Assessed by AIJev

Harmful: 13%
First-party: 42%
High impact: 55%
Adult content: 1%

Read from the listing and README on 11 Oct 2026. AI can make mistakes: a guide, not a check.

Requirements

Runs: Remote, on mcp.apify.com
Transport: Streamable HTTP
Sign-in: API key
Credentials: token
Clients: Any MCP client

https://mcp.apify.com/?tools=cybermax/send-email&via=mcp-registry

The publisher’s server itself; Odel doesn’t run it. Added to your modules, Odel fronts it with one address.

Details

Version: 1.0.1
Updated: 10 Oct 2026
Registry name: dev.workers.cybermax-tools.cybermax/send-email

cybermaxtools.com
Registry listing

Similar modules

Browse Sending email

MCP server: One MCP server.
Microsoft 365 MCP Server
@softeria · External1,031 GitHub stars.
Interact with Microsoft 365 and Office services through the Microsoft Graph API.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
MCP server: One MCP server.
Zenvia
@codespar · External272 GitHub stars.
MCP server for Zenvia — SMS, WhatsApp, RCS, Email, Voice, Facebook messaging, templates and reports
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
MCP server: One MCP server.
SendGrid
@codespar · External272 GitHub stars.
MCP server for SendGrid — global transactional + marketing email (Twilio-owned)
5% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
5% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
5% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
MCP server: One MCP server.
Atomic MailRun by its publisher: served from their own domain, namespace checked by the registry.
@atomic-mail · External265 GitHub stars.
Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
10% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
MCP server: One MCP server.
Gmail
@artymclabin · External247 GitHub stars.
Lean Gmail MCP server with auto authentication support
5% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
5% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
5% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.Free to use.
MCP server: One MCP server.
Agenticmail MCPRun by its publisher: served from their own domain, namespace checked by the registry.
@agenticmail · External231 GitHub stars.
Real email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.
8% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 known advisory (OSV) in its package.Free to use.
8% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 known advisory (OSV) in its package.Free to use.
8% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 known advisory (OSV) in its package.Free to use.
MCP server: One MCP server.
e2a — email for AI agentsRun by its publisher: served from their own domain, namespace checked by the registry.
@e2a · External193 GitHub stars.
Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
4% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
MCP server: One MCP server.
e2a — email for AI agentsRun by its publisher: served from their own domain, namespace checked by the registry.
@mnexa-ai · External192 GitHub stars.
Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.
6% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
6% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.
6% chance this is malicious. Assessed by AI, which can make mistakes.Can move money, run code, delete data or send messages for you. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.Free to use.

MCP server: One MCP server.
Bonafido: Business Domain Verification API
@cybermax-tools · External
Bonafido: is a domain a real business site? Verdict, trust score, risk flags.
7% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
7% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
7% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Commonkite: Free Image Search API, Creative Commons & CC0
@cybermax-tools · External
Commonkite: free-to-use CC/public-domain images with license + credit line.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
3% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Gripeline: App Store & Google Play Reviews
@cybermax-tools · External
App Store + Google Play reviews with per-app complaint summary for agents.
9% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
9% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
9% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
MCP server: One MCP server.
Inkpluck: Article Extractor — URL to Text, Markdown & Metadata
@cybermax-tools · External
Inkpluck: read web articles as Markdown + title, authors, date, language (newspaper3k successor)
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
MCP server: One MCP server.
Picpail: Bulk Image Downloader — All Images from URLs to ZIP
@cybermax-tools · External
Picpail: download all images from web pages as a ZIP, full-size originals, size/format per image.
11% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
11% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
11% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
MCP server: One MCP server.
Firmfold: Company Enrichment API
@cybermax-tools · External
Firmfold: company enrichment by domain/email/name: logo, tech, contacts, jobs, firmographics.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
MCP server: One MCP server.
CyberMax Data
@cybermax-tools · External
Free US data lookups: ZIP demographics, CISA KEV/EPSS CVEs, domain rank, county spending, recalls.
6% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
6% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
6% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; no sign-in.Free to use.
MCP server: One MCP server.
Keyfern: Keyword Ideas & Autocomplete — Google, YouTube, Amazon
@cybermax-tools · External
Keyword ideas from Google/YouTube/Bing/Amazon autocomplete, with intent and trend verdict.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.
10% chance this is malicious. Assessed by AI, which can make mistakes.Only reads or looks up information. Assessed by AI, which can make mistakes.A remote server; it needs your API key.Free to use.