# Qualisend Email Verification Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Qualisend Email Verification

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

- Record: https://musedirectory.ai/connector/qualisend-email-verification
- Category: Marketing & Ads
- Developer: Qualisend (https://app.qualisend.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 656ms, checked 2026-09-28T08:16:01Z
- Endpoint: https://app.qualisend.com/api/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T18:16:15Z)
- Source: Found in the official MCP Registry (com.qualisend/email-verification) https://registry.modelcontextprotocol.io/v0/servers?search=com.qualisend%2Femail-verification

Connects to Qualisend to verify single or bulk email addresses for syntax, domain validity, disposable detection, and mailbox reachability. Helps small businesses and marketers maintain clean contact lists and protect sender reputation.

Example request: "Clean my email list of 500 addresses to remove invalid and disposable emails before sending a campaign."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Qualisend Email Verification to help me. It is a free service with an MCP server at https://app.qualisend.com/api/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- verify_email: 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.
- verify_emails: 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.
- verify_list: 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 
- get_credit_balance: Return the number of verification credits available in your Qualisend workspace.
- get_verification: 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.
- check_domain: 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.
- generate_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.
- analyze_email_header: 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 credi
- check_disposable: 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.
- check_typo: 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.
- lookup_smtp_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.
- check_blacklist: 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. Read t

Screening checks:
- MCP handshake: pass (Answered in 1108ms)
- Domain against threat feeds (Cloudflare security DNS): pass (app.qualisend.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (12 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)