Powerline Email Tools
Email deliverability checks: SPF, DKIM, DMARC, BIMI, MTA-STS, blacklists, headers, spam words
Connector by powerline.aiOfficial · Domain verified by the MCP Registry
Install
Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install connector/powerline-ai-email-tools
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
Remote endpoint
https://powerline.ai/mcpRemote (HTTP)
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.
- Tools
- 5 read · 0 write · 0 deleteRead-only
- Secrets
- None asked for
- Install scripts
- Nothing to install (hosted)
- Runs as
- Hosted (remote endpoint)
Tools by what they do 5
From the running server's own tool list (tools/list) on Oct 25, 2026.
Read 5 · Look things up without changing anything.
analyze_headerscheck_blacklistscheck_domaincheck_recordcheck_spam_words
Network hosts it talks to 1
powerline.ai· found in remote endpoint, install command
Tools (5)
As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].
analyze_headersEmail header analyzerread-onlyParse raw email headers: the Received delivery path with per-hop delays, the receiving server's SPF/DKIM/DMARC verdicts, DMARC alignment of the From domain, DKIM signatures, the sending IP, and bulk-sender requirements such as one-click unsubscribe.
check_blacklistsDNS blacklist lookupread-onlyCheck an IPv4 address against about 18 IP blacklists (SpamCop, Barracuda, UCEPROTECT, PSBL, Mailspike, ...) or a domain against domain blacklists. Each list is verified with its test entries first, so lists that refuse public resolvers (such as Spamhaus) are reported as unavailable rather than clean.
check_domainEmail domain health checkread-onlyRun every email-authentication check on a domain (SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, BIMI, plus domain and mail-server blacklists) and return a score out of 100, per-check findings and a prioritized fix list. Use this first when asked whether a domain is set up correctly to send email.
check_recordCheck one DNS email recordread-onlyLook up and validate a single email DNS record for a domain, explaining each tag. record is one of spf, dmarc, dkim, bimi, mta-sts, tls-rpt, mx. SPF counts the 10-lookup limit; DMARC checks policy, reporting and external report authorization; DKIM sizes the key; MTA-STS fetches the policy file and compares it with the MX hosts; BIMI checks the logo (SVG Tiny PS) and mark certificate.
check_spam_wordsEmail copy spam checkread-onlyScan an email subject and body (plain text or HTML) for spam-trigger phrases by category, ALL-CAPS, exclamation runs, emoji, URL shorteners and image-heavy HTML. Returns a low/medium/high risk reading and, optionally, a rule-based rewrite.
Signals
- Last release
- Oct 2, 2026 (26 days ago)
Details
- Registry name
ai.powerline/email-tools- Version
- 1.0.0
- Auth
- Auth not stated
- License
- License unknown
- Website
- powerline.ai/tools/
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- Official MCP Registry
More from powerline.ai
Cite this page
Powerline Email Tools MCP server. Agent Mart. https://agentmart.dev/connectors/powerline-ai-email-tools (last updated 2026-10-24)