Qualisend Email Verification
Verify email addresses and clean lists to improve deliverability and sender reputation.
Connector by qualisend.comOfficial · Domain verified by the MCP Registry
Chalk Labs
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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/qualisend-com-email-verification
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://app.qualisend.com/api/mcpRemote (HTTP)
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About
Reviews
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Permissions
What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.
- Tools
- 9 read · 3 write · 0 delete
- Secrets
- None asked for
- Install scripts
- Nothing to install (hosted)
- Runs as
- Hosted (remote endpoint)
Tools by what they do 12
From the running server's own tool list (tools/list) on Oct 25, 2026.
Read 9 · Look things up without changing anything.
analyze_email_headercheck_blacklistcheck_disposablecheck_domaincheck_typogenerate_dns_recordget_credit_balanceget_verificationlookup_smtp_code
Write 3 · Create, change, send or run things.
verify_emailverify_emailsverify_list
Network hosts it talks to 1
app.qualisend.com· found in remote endpoint, install command
Tools (12)
As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].
analyze_email_headerAnalyze an email's headersread-onlyRead 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.
check_blacklistCheck a domain or IP against email blacklistsread-onlyCheck 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 the result carefully: `listed_on` are confirmed listings, while `undetermined_on` are lists that did not answer (commonly Spamhaus refusing a shared resolver). `clean` is true only when every list answered and none matched, so a non-empty `undetermined_on` means those lists are UNKNOWN - do not report them as clear or a…
check_disposableCheck if an email is throwaway / generic / freeread-onlyTell 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_domainCheck a domain's email setupread-onlyCheck 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.
check_typoSuggest a fix for a mistyped emailread-onlySpot 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.
generate_dns_recordCreate an email-authentication DNS recordread-onlyCreate 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.
get_credit_balanceGet credit balanceread-onlyReturn the number of verification credits available in your Qualisend workspace.
get_verificationGet a verification resultread-onlyLook 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.
lookup_smtp_codeExplain a mail-server error coderead-onlyExplain 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.
verify_emailVerify an email addressVerify 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_emailsVerify a batch of email addressesVerify 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_listVerify a large list of email addressesVerify 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.
Signals
- Last release
- Aug 14, 2026 (2 months ago)
Details
- Registry name
com.qualisend/email-verification- Version
- 1.0.0
- Auth
- Auth not stated
- License
- License unknown
- Website
- app.qualisend.com
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- Official MCP Registry
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Cite this page
Qualisend Email Verification MCP server. Agent Mart. https://agentmart.dev/connectors/qualisend-com-email-verification (last updated 2026-10-24)