Use MXToolbox from Claude
Add the MXToolbox connection to a Space that runs Claude, then use it from every channel in that Space.
ConnectorMXToolbox
MXToolbox integration for Claude and Codex
Create a MXToolbox connection, then control which Spaces can use its approved tools and data without pasting credentials into prompts or threads.
CategoryDeveloper Tools & IT
Use MXToolbox from Codex
Add the MXToolbox connection to a Space that runs Codex, then use it from every channel in that Space.
Use MXToolbox from Sidekick
Connect your own OpenClaw to Sidekick while type.com provides the conversations, permissions, connections, skills, and automations.
Developer Tools & IT
What the MXToolbox connector can do
MXToolbox runs DNS and email-authentication checks, covering blacklist status, DKIM, DMARC, BIMI, and general DNS health for a domain. In type.com, a deliverability or IT team can ask Claude to check whether a domain landed on a blacklist, confirm a DMARC policy is set up right, or pull a full DNS health report.
One connection, many Spaces
Connect MXToolbox once, then decide which Spaces can use it in threads, skills, automations, and coding work.
What teams do with MXToolbox in type.com
Check a domain against blacklists after a delivery drop
Run a blacklist check on a sending domain or IP when email delivery suddenly drops, to rule out a listing as the cause.
Check if mail.ourcompany.com is on any blacklists in MXToolbox, our open rates dropped sharply this week.
Confirm DMARC is configured correctly
Look up a domain's DMARC record and review its policy settings before a new sending domain goes live for marketing email.
Look up the DMARC record for ourcompany.com in MXToolbox and tell me if the policy is set to reject.
Run a full DNS health check before a migration
Pull name server records and run DNS diagnostics on a domain before a migration, to catch warnings or errors ahead of time.
Run a DNS health check on ourcompany.com in MXToolbox before we switch name servers next week.
Representative actions
- Lookup BIMI Record
Checks whether a domain has a valid BIMI record set up, which controls whether a verified logo shows in email clients.
- Lookup Blacklist
Checks whether a domain or IP address appears on common email blacklists.
- Lookup DKIM Record
Retrieves a domain's DKIM record to confirm outgoing mail can be verified as authorized by the sender.
- Lookup DMARC Record
Retrieves and validates a domain's DMARC record, including its policy setting, for email authentication checks.
- Lookup DNS Records
Runs a broad DNS health check on a domain, returning name server records and configuration warnings or errors.
Connection
API and auth details
MxToolbox provides REST APIs for DNS lookups, blacklist checks, email diagnostics, monitoring, and API usage data. Integrations can run MX, DNS, SPF, DKIM, DMARC, blacklist, SMTP, and network checks using an API key in the Authorization header.
- Source
- type.com catalog metadata
- Auth schemes
- API key
- Official site
- https://mxtoolbox.com/
FAQ
Questions people ask before connecting MXToolbox
Can Claude diagnose email deliverability with MXToolbox?
Yes. With an MXToolbox connection shared to a type.com Space, Claude can check blacklists, DKIM, DMARC, and DNS records for a domain, and share the findings right in the thread.
How do I authenticate MXToolbox in type.com?
MXToolbox uses an API key, added once by an admin when the connection is created. Spaces that need deliverability checks can use it without seeing the key.
Can DNS and blacklist checks run on a schedule?
Yes. A recurring check, such as a weekly blacklist scan for your sending domains, can be set up as a type.com automation.
Is this the same as a MXToolbox MCP server?
Not exactly. type.com uses connectors and connections to give selected Spaces access to approved app tools and data. Some connectors use hosted MCP, while others use OAuth, API keys, service accounts, or custom APIs.
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