MCP server

MailVakt Official

com.mailvakt/mailvakt

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.

Working at last checkVerified publisher: mailvakt.comAbout 1,848 tokens per request once connected8 tools

Website

https://mcp.mailvakt.com/mcp

At a glance

Type: MCP server
Publisher: mailvakt.com (verified by the MCP Registry)
Status: Working at last check
Tools: 8
Token cost: About 1,848 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mailvakt https://mcp.mailvakt.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mailvakt]
url = "https://mcp.mailvakt.com/mcp"

Gemini CLI

{"mcpServers":{"mailvakt":{"httpUrl":"https://mcp.mailvakt.com/mcp"}}}

Cursor

{"mcpServers":{"mailvakt":{"url":"https://mcp.mailvakt.com/mcp"}}}

VS Code

{"servers":{"mailvakt":{"type":"http","url":"https://mcp.mailvakt.com/mcp"}}}

Antigravity

agy mcp add mailvakt https://mcp.mailvakt.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mailvakt","server_url":"https://mcp.mailvakt.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mailvakt","server_url":"https://mcp.mailvakt.com/mcp"}

Tools

add_domain ~192 tokens
Add a domain to the signed-in user's MailVakt account for DMARC report collection. Takes a domain; returns its DMARC reporting (rua) address and account entry. Repeated calls for the same account and domain return the existing entry. Requires domains:write permission. Does not verify domain ownershi
analyze_email_headers ~219 tokens
Analyze raw email headers supplied by the user to investigate authentication or delivery issues. Returns the SPF, DKIM and DMARC results reported in those headers, alignment, the sending IP, whether that IP and the From domain are on free public blocklists (not Spamhaus), and detected issues. It doe
diagnose_domain ~337 tokens
Audit a domain's SPF, DKIM, DMARC, MX, alignment, BIMI, MTA-STS and TLS-RPT setup and check it against free public blocklists (not Spamhaus) when troubleshooting email authentication or spam delivery. Takes a domain, optional checks and DKIM selectors, and fresh=true to bypass cached results. Return
generate_dns_records ~312 tokens
Propose email-authentication DNS records and policy files for a domain using its DNS configuration and optional provider names or IDs. Supports baseline (monitoring) or enforce goals; baseline is the default. Returns typed SPF, DKIM, DMARC, MTA-STS and TLS-RPT proposals or provider setup instruction
get_dmarc_summary ~249 tokens
Summarize received DMARC aggregate reports for a domain already in the signed-in user's MailVakt account. Takes the domain and a 1-to-90-day window (default 7); returns report and message totals, DMARC pass/fail counts, and per-source SPF/DKIM alignment and receiver actions. Requires domains:read an
get_inbox_test ~202 tokens
Read a MailVakt email-receipt test using the ID returned by start_inbox_test. Returns pending, received or expired status and, when processed, the received message's authentication, unsubscribe, content and deliverability findings. Reports processing failures as errors. Anyone with the test ID can r
list_domains ~140 tokens
List domains in the signed-in user's MailVakt account, including each domain's DMARC reporting address. Takes no input and requires domains:read permission. Returns an empty list if the account has no domains. Use to find the account's available domains before requesting DMARC summaries; does not en
start_inbox_test Sends messages · ~197 tokens
Create an email-receipt test in MailVakt. Takes an optional expected sender domain; returns a test ID, unique recipient address and expiry time. The user must send a test message to that address before expiry, then use get_inbox_test to read the result. Creates a new test on each call. Does not send

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