MCP.Market

mailfloss MCP server

online · 100% uptime
by mailfloss.com·com.mailfloss/mailfloss·v1.0.0
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Email verification for AI agents: verify addresses and lists, check credits, manage integrations.

B77/100grade B
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Safety scan
B77/100

full report

Adoption
New

Little public usage data yet

Reviews

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mailfloss tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-10-27 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 207ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenanceno repository listed3/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 77/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How mailfloss compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
77/100
higher than 50% of 916 Email servers
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
176 ms
faster than 71% of 609 Email servers

Install mailfloss in Claude Code, Cursor or VS Code

claude mcp add --transport http mailfloss https://api.mailfloss.com/mcp
Add to Cursor

mailfloss: common questions

Is mailfloss MCP server safe?
Mostly: it is graded B (77/100). Read the mailfloss safety report
How do I install mailfloss?
It runs remotely at api.mailfloss.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does mailfloss need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is mailfloss maintained?
The latest release is v1.0.0.
Is mailfloss up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of mailfloss?
Servers from other publishers that do the same job: MailProbe MCP server, MX Probe MCP server and Agenticmail MCP server.
How does mailfloss compare with other Email MCP servers?
safety score 77/100 (higher than 50% of 916 Email servers); uptime 100% (of our recent checks; the typical remote Email server answers 100%); response time 176 ms (faster than 71% of 609 Email servers). Full comparison.

Alternatives to mailfloss

Same job from other publishers: the closest match first, then the best rated.

  • MailProbe
    Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.
    A
  • MX Probe
    Email verification for AI agents: send, hold or kill with the reason. Signup and credits by API.
    B
  • Agenticmail
    Real email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.
    B
  • Tomba MCP Server
    MCP server for Tomba email finder, verification, and contact enrichment API
    A
  • ReplyLayer
    Safe email for AI agents: a mailbox with inbound scanning, outbound checks and human review.
    A