# Inboxguard Email Deliverability MCP server

Source: https://glimind.com/server/mcp-registry%2Fio.inboxguard%2Femail-deliverability
Registry id: `mcp-registry/io.inboxguard/email-deliverability`
Status: live (checked 2026-10-27T12:57:01.020Z)

## Verdict

Inboxguard Email Deliverability MCP server answered 100% of Glimind's liveness checks over 30 days, better than 42% of MCP servers, with 689 ms median handshake and 0 outages in 90 days. Its agent-readiness grade is A (96/100) across 28 tools, costing an agent about 4,128 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 100% | 42% of MCP servers |
| Median handshake latency | 689 ms | 30% of MCP servers |
| p95 handshake latency | 3005 ms | — |
| Checks in 30 days | 4,985 | — |
| Outages, 90 days | 0 | — |
| Median recovery | — | — |
| Agent-readiness score | 96/100 (A) | 82% of MCP servers |
| Tools | 28 | — |
| Tool-list size for an agent | ~4,128 tokens | 41% of MCP servers |
| Days observed | 29 | — |

## Install

```json
{
  "mcpServers": {
    "inboxguard-email-deliverability-mcp-serv": {
      "type": "http",
      "url": "https://mcp.inboxguard.io/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http inboxguard-email-deliverability-mcp-serv https://mcp.inboxguard.io/mcp
```

## Tools (28)

- `analyze_headers`: Re-verify SPF, DKIM, DMARC, and ARC from a raw RFC 5322 email (full message or just the headers block). Returns InboxGuard's independent verdict (`ours`), the s
- `apply_dns_fix`: Apply a DNS fix plan to a tracked domain by publishing records at the connected registrar. DESTRUCTIVE: it creates/updates/deletes DNS records. Two-step by desi
- `check_blocklists`: Check a domain (apex + MX-host IPs) against supported DNS blocklists and return listings, targets checked, and issues (authoritative-side queries; no public-res
- `connect_inbox_placement`: Store the org's seed-list inbox-placement provider + API key (provider: 'mailreach' or 'glockapps'; GlockApps also needs projectId). Enables start_inbox_placeme
- `connect_snds`: Store this org's Microsoft SNDS (Smart Network Data Services) automated-data-access key so InboxGuard syncs per-IP Outlook/Hotmail reputation daily. Get the key
- `create_notification_channel`: Create a channel that InboxGuard alerts are delivered to: webhook (HMAC-signed), Slack, Microsoft Teams, PagerDuty, SMS, or email. Returns the channel id, and f
- `create_share_link`: Create a read-only public share link for a tracked domain's latest report (anyone with the URL can view it; no account). Returns a `token` and the public `url` 
- `get_deliverability_report`: Return a structured deliverability report for a tracked domain: the latest score + letter grade + `scoreSubtitle` (explains the denominator when a check was exc
- `get_deliverability_score`: Return the overall deliverability score and letter grade for a domain (runs a fresh scan).
- `get_dmarc_summary`: Summarize ingested DMARC aggregate (RUA) reports for a domain tracked in your InboxGuard account: report volume, pass rate, top sending sources, and the rua inb
- `get_dns_fix_plan`: Compute the exact DNS-record changes needed to fix a tracked domain's deliverability, based on its latest scan and the org's connected registrar (Cloudflare/Rou
- `get_domain`: Full detail for one tracked domain: the domain record, the latest scan with all per-check findings (spf, dmarc, dkim, ptr, mta_sts, tls_rpt, mx_tls, blocklist),
- `get_inbox_placement_status`: Report whether a seed-list inbox-placement provider is connected for the org, which provider, and how many tests have run. Lists the supported providers when no
- `get_inbox_placement_test`: Poll a seed-list inbox-placement test by testId. Returns status (running/completed/failed) and, once measured, the Inbox/Spam/Missing counts and inbox-placement
- `get_portfolio`: Org-wide deliverability rollup across every monitored domain: average score + overall grade, the grade distribution (how many domains are A/B/C/D/F/unscored), t
- `get_scan_job`: Poll an async batch scan started with scan_domains_batch: returns status (queued/running/succeeded/partial/failed), completed count, and per-domain results (dom
- `get_snds_ip_stats`: Return the latest per-IP reputation from Microsoft SNDS for the org's sending IPs: filter result (GREEN/YELLOW/RED), complaint-rate band, spam-trap hits, messag
- `get_snds_status`: Report whether Microsoft SNDS is connected for the org, the last sync time + status, how many sending IPs are tracked, and how many are currently blocked by Out
- `list_alerts`: List the account's deliverability alerts (score drops, check failures, blocklist listings). Defaults to open alerts only.
- `list_domains`: List the account's tracked domains with latest scan score, last scan time, and open alert count.
- `list_inbox_placement_tests`: List recent seed-list inbox-placement tests for the org (most recent first) with their status and Inbox/Spam/Missing scores.
- `list_registrar_connections`: List the registrar accounts (Cloudflare, Route 53, GoDaddy, Namecheap) connected to the org — provider, verification, last-used time — plus the supported provid
- `list_scans`: List recent scans (id, domain, run time, score) across all tracked domains, or for one domain when a name is given.
- `remove_domain`: Stop monitoring a domain and delete it (and its scan history) from the account. DESTRUCTIVE and not reversible. Requires an owner/admin API key with write or fu
- `resolve_alert`: Mark an alert resolved (or reopen it with resolved=false). Requires an API key with write/full scope. Resolving an already-resolved alert is a no-op.
- `scan_domain`: Run a full email-deliverability scan (SPF, DKIM, DMARC, MTA-STS, TLS-RPT, MX TLS, BIMI, DNS blocklists) for a domain and return a 0-100 score with per-check fin
- `scan_domains_batch`: Queue an asynchronous batch scan of up to 50 domains and get a jobId immediately (avoids the 30s per-call limit). Poll get_scan_job with the jobId until status 
- `start_inbox_placement_test`: Start a seed-list inbox-placement test. Returns a testId, the seed addresses to mail your campaign to, and (if the provider requires it) a header to insert. Aft

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.