# Qualisend Email Verification (remote · app.qualisend.com)

Verify email addresses and clean lists to improve deliverability and sender reputation.

- Trust score: 74/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-15

## Components

- remote · `app.qualisend.com`: 74/100 (this document), [markdown](https://verifymcp.io/servers/com-qualisend-email-verification/api-mcp.md), [page](https://verifymcp.io/servers/com-qualisend-email-verification/api-mcp)

## Channel facts

- Endpoint: `https://app.qualisend.com/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-15.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 81/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1339 tokens (~111/item across 12 items; 12 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 3/100
  - Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-qualisend-email-verification https://app.qualisend.com/api/mcp
```

### Codex

```toml
[mcp_servers.com-qualisend-email-verification]
url = "https://app.qualisend.com/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-qualisend-email-verification": {
      "type": "remote",
      "url": "https://app.qualisend.com/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-qualisend-email-verification --url https://app.qualisend.com/api/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-qualisend-email-verification:
    url: "https://app.qualisend.com/api/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-qualisend-email-verification": {
      "type": "http",
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-15 (score 74, +8)

- [security improvement] Authorization: unverified → partial
- [functional improvement] Stability: unverified → 0.03

### 2026-08-14 (score 66)

First indexed and scored.

## MCP tools (12)

### `verify_email` (~69 tokens)

Verify an email address

Verify a single email address — syntax, domain/MX, disposable + role detection, typo suggestion, and mailbox reachability. Returns a deliverability verdict (deliverable / risky / undeliverable / unknown). Consumes 1 credit.

Input parameters:

- `email` (string, required): The email address to verify.

### `verify_emails` (~67 tokens)

Verify a batch of email addresses

Verify up to 50 email addresses at once and get a deliverability verdict for each, synchronously. Consumes 1 credit per address. For larger lists (up to 1000), use verify_list.

Input parameters:

- `emails` (array, required): Email addresses to verify (1–50).

### `verify_list` (~112 tokens)

Verify a large list of email addresses

Verify a large list of up to 1000 email addresses. This runs ASYNCHRONOUSLY: it creates ONE bulk job, returns a job_id immediately, and the mailbox probes run in the background. Poll get_verification with the job_id for progress and a result summary (counts by verdict). Consumes 1 credit per address. For lists larger than 1000, use the Qualisend dashboard or bulk API.

Input parameters:

- `emails` (array, required): Email addresses to verify (1–1000).

### `get_credit_balance` (~23 tokens)

Get credit balance

Return the number of verification credits available in your Qualisend workspace.

### `get_verification` (~78 tokens)

Get a verification result

Look up the status and result of a verification you started, by job_id (returned from verify_email/verify_emails). For a single check it returns the final verdict once the mailbox probe completes; for a batch it returns progress + a result-mix summary.

Input parameters:

- `job_id` (string, required): The job_id returned by a verify tool.

### `check_domain` (~82 tokens)

Check a domain's email setup

Check whether a domain is set up to send email that reaches the inbox — its mail servers plus its SPF and DMARC sender-authentication, and what's missing. A plain deliverability health check for a sending domain. No credit used. Available on the Qualisend Pro plan.

Input parameters:

- `domain` (string, required): The domain to check, e.g. acme.com.

### `generate_dns_record` (~306 tokens)

Create an email-authentication DNS record

Create the exact DNS setting a domain needs so its email is trusted and harder to spoof — SPF, DMARC, BIMI, or MTA-STS. Returns the record to copy into DNS, with where to put it. No credit used. Available on the Qualisend Pro plan.

Input parameters:

- `all` (string): SPF: how strict to be with everyone else (default ~all).
- `authorityUrl` (string): BIMI: https link to the VMC certificate.
- `domain` (string, required): The domain the record is for.
- `includes` (array): SPF: services allowed to send (e.g. _spf.google.com).
- `ip4` (array): SPF: allowed IPv4 addresses/ranges.
- `ip6` (array): SPF: allowed IPv6 addresses/ranges.
- `logoUrl` (string): BIMI: https link to the brand's SVG logo.
- `mode` (string): MTA-STS: policy mode (default testing).
- `mxHosts` (array): MTA-STS: the domain's mail-server hostnames.
- `pct` (number): DMARC: percent of mail the policy applies to.
- `policy` (string): DMARC: what to do with mail that fails checks.
- `rua` (string): DMARC: email to receive summary reports.
- `ruf` (string): DMARC: email to receive detailed failure reports.
- `type` (string, required): Which record to create.

### `analyze_email_header` (~96 tokens)

Analyze an email's headers

Read the hidden technical details of an email (its 'headers') to show the route it took, how long each step took, and whether it passed spam/authentication checks — handy for figuring out why a message was slow or went to spam. Paste the message source / 'Show original'. No credit used. Available on the Qualisend Pro plan.

Input parameters:

- `raw` (string, required): The raw email headers (paste the message source).

### `check_disposable` (~77 tokens)

Check if an email is throwaway / generic / free

Tell whether an email address is a throwaway/temporary one, a generic team inbox (like info@ or support@), or a free consumer address (like gmail) — useful for spotting low-quality sign-ups. No credit used. Available on the Qualisend Pro plan.

Input parameters:

- `email` (string, required): The email address to check.

### `check_typo` (~69 tokens)

Suggest a fix for a mistyped email

Spot a likely typo in an email's domain (like gmial.com) and suggest the correct one, so you don't lose contacts to misspelled addresses. No credit used. Available on the Qualisend Pro plan.

Input parameters:

- `email` (string, required): The email address to check for a typo.

### `lookup_smtp_code` (~82 tokens)

Explain a mail-server error code

Explain a mail-server reply/error code (like 550 or 5.1.1) in plain English, and say whether it's a temporary hiccup or a permanent failure. No credit used. Available on the Qualisend Pro plan.

Input parameters:

- `code` (string, required): The SMTP code, e.g. 550 or 5.1.1.

### `check_blacklist` (~88 tokens)

Check a domain or IP against email blacklists

Check whether a sending domain or IP is currently on any of the major email blacklists that can push your mail to spam — a point-in-time reputation check across lists like Spamhaus, SpamCop, and Barracuda. No credit used. Requires the Qualisend Blacklist Monitoring add-on.

Input parameters:

- `target` (string, required): A domain (acme.com) or an IPv4 address.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-qualisend-email-verification/api-mcp#diagnostics

## Score history

- 2026-08-15: 74
- 2026-08-14: 66

## Links

- Remote endpoint: https://app.qualisend.com/api/mcp
- Website: https://app.qualisend.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-qualisend-email-verification/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-qualisend-email-verification/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-qualisend-email-verification/api-mcp