Domain Mail Check
Rank #76,833app.openkrill/mailcheck
Check a domain's email DNS, whether Gmail and Outlook accept its mail, and its registration.
What you can do with Domain Mail Check
Domain Mail Check is a Model Context Protocol (MCP) server published by nguyenhieuec. It ranks #76,833 of 150,963 active servers on MCP Toplist. Domain Mail Check is listed on Official MCP, with 2 tracked versions. It was first listed on Oct 3, 2026 and most recently updated on Oct 21, 2026.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.
What Domain Mail Check can and cannot do
MCP Toplist connected to the public endpoint on Oct 15, 2026 and it listed 7 tools. Tool names are not stored, so what they do is not catalogued here.
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.
What you need before using Domain Mail Check
The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.
Verified by MCP Toplist on Oct 15, 2026: the public endpoint completed the MCP handshake and listed 7 tools without credentials.
Declared by the Official MCP Registry, last synced Oct 22, 2026. Not independently verified by MCP Toplist.
Hosted endpoint declared as public.
Connect Domain Mail Check and confirm it works
claude mcp add --transport http mailcheck https://mailcheck.openkrill.app/mcp[mcp_servers.mailcheck]
url = "https://mailcheck.openkrill.app/mcp"Add to ~/.codex/config.toml.
https://mailcheck.openkrill.app/mcpSettings → Connectors → “Add custom connector”, then paste this URL.
{
"mcpServers": {
"mailcheck": {
"url": "https://mailcheck.openkrill.app/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).
{
"servers": {
"mailcheck": {
"type": "http",
"url": "https://mailcheck.openkrill.app/mcp"
}
}
}Save as .vscode/mcp.json in your workspace.
{
"mcpServers": {
"mailcheck": {
"serverUrl": "https://mailcheck.openkrill.app/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
{
"mcpServers": {
"mailcheck": {
"url": "https://mailcheck.openkrill.app/mcp"
}
}
}After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.
When to choose another server
No task-specific alternatives are catalogued for Domain Mail Checkyet; the list above is its publisher's other servers.
What changed, and when this was checked
- First listed
- Oct 3, 2026
- Latest version published
- Oct 21, 2026
- Version history
- 2 versions tracked (below)
- Requirements evidence
- Verified by MCP Toplist on Oct 15, 2026: the public endpoint completed the MCP handshake and listed 7 tools without credentials.
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Oct 21, 2026
- Official MCP ↗listed since Oct 3, 2026 · still listed
Do you maintain Domain Mail Check? to correct or enrich this profile.
Available versions (2)
| Version | Published |
|---|---|
| 1.4.0 | Oct 21, 2026 |
| 1.0.0 | Oct 3, 2026 |
Ranks ahead of 74,130 of 150,963 servers on MCP Toplist.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/app.openkrill%2Fmailcheck)<a href="https://mcptoplist.com/server/app.openkrill%2Fmailcheck"><img src="https://mcptoplist.com/badge/app.openkrill%2Fmailcheck.svg" alt="MCP Toplist: #76,833 of 150,963" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Who maintains Domain Mail Check?
- Domain Mail Check is maintained by nguyenhieuec, which publishes 67 MCP servers (110 total versions) tracked on MCP Toplist.
- Is Domain Mail Check listed on the Official MCP Registry?
- Yes — Domain Mail Check is listed on the Official MCP Registry.
- How many versions does Domain Mail Check have?
- MCP Toplist tracks 2 versions of Domain Mail Check, most recently published on Oct 21, 2026.
- Where can I find the source code for Domain Mail Check?
- The source code for Domain Mail Check is hosted at github.com/nguyenhieuec/agent-tools-plugins.
Do you run this server?
Community projects list the MCP servers behind real agents and apps. Publish yours and this page will link to it.