Tools / email.check
Email address check
email.check
Syntax, mail-server (MX) presence, disposable-domain and role-account checks for an address.
NetworkLaunch set1 unit per call24 h cacheMCP: email_checkv1.0.0
When to use it
Use to screen addresses before sending or storing them: is the syntax valid, does the domain accept mail, is it a throwaway provider. It does not contact the mailbox, so it cannot confirm that the person exists.
Input
| Field | Type | Description |
|---|---|---|
email * | string (3+ chars, ≤ 320 chars) | Email address to check. |
* required
Output
Returns data with: email, valid_syntax, syntax_error, domain, mail_servers: [{priority, host}], accepts_mail, implicit_mx, disposable, role_account, deliverable_signal.
Request
curl -X POST https://agentops.tools/v1/email.check \
-H 'content-type: application/json' \
-d '{"email":"someone@example.com"}'Over MCP the tool is named email_check. Over A2A its skill id is email.check. Same input, same envelope.
Try it
Counts against your rate limit.
Sources
Notes
- No SMTP probing is done. A deliverable_signal of true means the domain can receive mail, not that the mailbox exists.