Powerline Email Tools
Email deliverability checks: SPF, DKIM, DMARC, BIMI, MTA-STS, blacklists, headers, spam words
使うべきか
品質と安全性
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"email-tools": {
"url": "https://powerline.ai/mcp"
}
}
}リモートエンドポイント
https://powerline.ai/mcpstreamable-httpできること
ツール一覧
ツール（5）
🟢check_domain(domain, dkim_selector)
Run 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.
入力スキーマ
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. example.com. URLs and email addresses are accepted; the domain part is used."
},
"dkim_selector": {
"type": "string",
"description": "DKIM selector (the s= value from a DKIM-Signature header). Optional; common selectors are tried when omitted."
}
},
"required": [
"domain"
],
"additionalProperties": false
}🟢check_record(domain, record, selector, policy)
Look 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.
入力スキーマ
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. example.com. URLs and email addresses are accepted; the domain part is used."
},
"record": {
"type": "string",
"enum": [
"spf",
"dmarc",
"dkim",
"bimi",
"mta-sts",
"tls-rpt",
"mx"
]
},
"selector": {
"type": "string",
"description": "DKIM or BIMI selector. Optional."
},
"policy": {
"type": "string",
"description": "MTA-STS only: policy file text to check instead of fetching it. Optional."
}
},
"required": [
"domain",
"record"
],
"additionalProperties": false
}🟢check_blacklists(target)
Check 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.
入力スキーマ
{
"type": "object",
"properties": {
"target": {
"type": "string",
"description": "IPv4 address or domain."
}
},
"required": [
"target"
],
"additionalProperties": false
}🟢analyze_headers(headers)
Parse 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.
入力スキーマ
{
"type": "object",
"properties": {
"headers": {
"type": "string",
"description": "The raw header block (everything above the message body)."
}
},
"required": [
"headers"
],
"additionalProperties": false
}🟢check_spam_words(subject, body, rewrite)
Scan 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.
入力スキーマ
{
"type": "object",
"properties": {
"subject": {
"type": "string"
},
"body": {
"type": "string",
"description": "Plain text or HTML."
},
"rewrite": {
"type": "boolean",
"description": "Also return a calmer rewrite of the subject (and of a plain-text body)."
}
},
"additionalProperties": false
}コミュニティ
エビデンス