name: email-address-validation-single description: "Email Address Validation - Single: Verify single email: syntax, DNS/MX lookup, SMTP mailbox check (without sending). Detects disposable, role-based, spam traps. Use when an agent needs email address validation single, email address validation single, form validation for user registration and signups, cleaning email lists before campaigns, reducing bounce rates for email marketing, preventing fake account creation, verify, email through AgentPMT-hosted remote tool calls." version: 1.0.0 homepage: https://www.agentpmt.com/marketplace/email-address-validation-single compatibility: "Agent instructions for AgentPMT-hosted remote tool calls. Follow this skill body for supported account, wallet, and setup routes. No local command runtime is declared." metadata: {"author":"agentpmt","openclaw":{"homepage":"https://www.agentpmt.com/marketplace/email-address-validation-single"}}

Email Address Validation - Single

Freshness

Last updated: 2026-06-23.

If the current date is more than 7 days after the last updated date, reinstall this skill from skills.sh or ClawHub before relying on endpoints, schemas, setup steps, or examples.

What This Tool Does

Verify the validity and deliverability of individual email addresses. The verification process performs multiple checks including syntax validation, DNS and MX record lookup to confirm the domain can receive mail, and SMTP-level verification that connects to the recipient's mail server to check if the specific mailbox exists—all without sending an actual email. Additional checks detect disposable and temporary email providers, identify role-based addresses like info@ or support@, recognize known spam traps, and reference historical bounce data. Returns verification status (valid, invalid, disposable, catchall, or unknown), flags for potential issues, suggested corrections for typos, and optional metadata including address parsing details.

Product Instructions

Email Address Validation - Single

Verify individual email addresses for deliverability and validity. Returns detailed results including whether the email is valid, invalid, disposable, or a catch-all, along with optional address metadata and account credit balance.

Actions

verify

Validate a single email address and get a deliverability result.

Required Fields: - action (string): "verify" - email (string): The email address to verify

Optional Fields: - address_info (boolean, default: true): Include additional address metadata (e.g., free email provider, role account detection) - credits_info (boolean, default: true): Include remaining credit balance in the response - timeout (integer, default: 10, range: 1-30): Request timeout in seconds

Example - Basic verification:

{
  "action": "verify",
  "email": "jane.doe@example.com"
}

Example - Verification without extra metadata:

{
  "action": "verify",
  "email": "support@company.org",
  "address_info": false,
  "credits_info": false
}

Example - Verification with extended timeout:

{
  "action": "verify",
  "email": "user@slow-mail-server.net",
  "timeout": 25
}

Response Fields

• email: The email address that was checked
• result: Verification result (e.g., "valid", "invalid", "disposable", "catchall", "unknown")
• flags: Array of flags providing additional context about the address
• suggested_correction: A suggested spelling correction if a typo is detected (or null)
• execution_time: Time taken to verify the address in milliseconds
• address_info (when enabled): Additional metadata about the address such as whether it is a free provider or role account
• credits_info (when enabled): Remaining verification credits on the account

Common Workflows

1. Pre-send email validation: Verify an email address before sending a message to reduce bounces.
2. Form input validation: Check an email submitted through a signup or contact form for deliverability.
3. CRM data hygiene: Spot-check individual contacts in a CRM to confirm addresses are still valid.
4. Typo detection: Use the suggested_correction field to catch common misspellings (e.g., "gmial.com" -> "gmail.com").

Important Notes

• Each verification consumes one credit.
• Results are real-time checks against the mail server; transient server issues may return "unknown".
• For verifying large batches of emails, use the bulk email verification product instead.
• The timeout parameter controls how long to wait for the remote mail server to respond. Increase it for servers known to be slow.

When To Use

• Use this skill for Email Address Validation - Single on AgentPMT.
• Use it when an agent needs this specific tool's behavior, schema, inputs, outputs, and invocation shape.
• Search and activation keywords: email address validation single, email address validation single, form validation for user registration and signups, cleaning email lists before campaigns, reducing bounce rates for email marketing, preventing fake account creation, verify, email.
• Supported action names: verify.

Use Cases

• Form validation for user registration and signups
• cleaning email lists before campaigns
• reducing bounce rates for email marketing
• preventing fake account creation
• validating customer contact information at point of entry
• detecting typos and suggesting corrections
• lead qualification and CRM data hygiene
• checkout flow email verification for e-commerce.

Categories And Industries

No categories or industry tags are published for this tool.

Actions And Schema

Complete generated action schema: ./schema.md. Supported action count: 1. x402 availability: not enabled for this product.

• verify (action slug: verify): Verify a single email address for deliverability and validity. Performs syntax validation, DNS/MX record lookup, and SMTP-level mailbox verification without sending an email. Price: 5 credits. Parameters: address_info, credits_info, email, timeout.

Live Schema And Examples

Use the compact schema above for ordinary calls. Before a new production integration, or whenever parameters, enum values, nested objects, outputs, or examples are unclear, fetch live details first.

• Exact schema: call agentpmt-tool-search-and-execution with action: "get_schema", and tool_id: "email-address-validation-single".
• Detailed examples: call agentpmt-tool-search-and-execution with action: "get_instructions" and tool_id: "email-address-validation-single", or call this product with action: "get_instructions" when the product tool is already selected.
• Treat returned live schema and instructions as more specific than this generated summary.

MCP schema lookup through the main AgentPMT MCP server:

{
  "method": "tools/call",
  "params": {
    "name": "AgentPMT-Tool-Search-and-Execution",
    "arguments": {
      "action": "get_schema",
      "tool_id": "email-address-validation-single"
    }
  }
}

For live examples, keep the same MCP tool and use these arguments:

{
  "action": "get_instructions",
  "tool_id": "email-address-validation-single"
}

Authenticated AgentPMT REST schema lookup body:

{
  "name": "agentpmt-tool-search-and-execution",
  "parameters": {
    "action": "get_schema",
    "tool_id": "email-address-validation-single"
  }
}

Authenticated AgentPMT REST live examples body:

{
  "name": "agentpmt-tool-search-and-execution",
  "parameters": {
    "action": "get_instructions",
    "tool_id": "email-address-validation-single"
  }
}

Call This Tool

Product slug: email-address-validation-single

Marketplace page: https://www.agentpmt.com/marketplace/email-address-validation-single

• AgentPMT account route: first use ../agentpmt-account-mcp-rest-api-setup to connect the main MCP server or REST API for an Agent Group where this tool is enabled.
• x402 route: not enabled for this product.
• AgentPMT overview: use ../what-is-agentpmt for marketplace, Agent Group, workflow, MCP, REST, and payment concepts.

If those setup skills are not installed beside this product skill, use the downloads below.

Core AgentPMT setup skills: - What AgentPMT is: ../what-is-agentpmt - ClawHub page: https://clawhub.ai/agentpmt/what-is-agentpmt - OpenClaw install: openclaw skills install what-is-agentpmt - skills.sh install: npx skills add AgentPMT/agent-skills --skill what-is-agentpmt - AgentPMT account MCP/REST setup: ../agentpmt-account-mcp-rest-api-setup - ClawHub page: https://clawhub.ai/agentpmt/agentpmt-account-mcp-rest-api-setup - OpenClaw install: openclaw skills install agentpmt-account-mcp-rest-api-setup - skills.sh install: npx skills add AgentPMT/agent-skills --skill agentpmt-account-mcp-rest-api-setup

skills.sh install script:

npx skills add AgentPMT/agent-skills --skill what-is-agentpmt
npx skills add AgentPMT/agent-skills --skill agentpmt-account-mcp-rest-api-setup

MCP call shape after the main AgentPMT MCP server is connected:

{
  "method": "tools/call",
  "params": {
    "name": "Email-Address-Validation---Single",
    "arguments": {
      "action": "verify",
      "address_info": true,
      "credits_info": true,
      "email": "user@example.com",
      "timeout": 10
    }
  }
}

Use the exact tool name returned by tools/list; the name above is the expected readable form.

Authenticated AgentPMT REST call body:

{
  "name": "email-address-validation-single",
  "parameters": {
    "action": "verify",
    "address_info": true,
    "credits_info": true,
    "email": "user@example.com",
    "timeout": 10
  }
}

Use the setup skill for the account connection details before making REST calls.

Response Handling

• Treat the returned JSON as the source of truth for this tool call.
• If the response includes warnings or correction targets, apply them before retrying.
• If the response includes a passed or success-style boolean, use it as the workflow gate.
• If validation fails or the response shape is unclear, call get_schema or get_instructions before retrying.
• If verify fails, preserve the request parameters and retry only after fixing schema, auth, or payment errors.

Security

• Do not place account secrets, wallet private keys, mnemonics, signatures, or payment headers in prompts or logs.
• Keep tool inputs scoped to the minimum content needed for the task.
• Use the setup skills for credential handling; this product skill only defines product-specific behavior.

AgentPMT Reference

• What AgentPMT is: ../what-is-agentpmt (ClawHub: what-is-agentpmt, page: https://clawhub.ai/agentpmt/what-is-agentpmt; skills.sh: npx skills add AgentPMT/agent-skills --skill what-is-agentpmt)
• AgentPMT account MCP/REST setup: ../agentpmt-account-mcp-rest-api-setup (ClawHub: agentpmt-account-mcp-rest-api-setup, page: https://clawhub.ai/agentpmt/agentpmt-account-mcp-rest-api-setup; skills.sh: npx skills add AgentPMT/agent-skills --skill agentpmt-account-mcp-rest-api-setup)
• Marketplace product: https://www.agentpmt.com/marketplace/email-address-validation-single
• AgentPMT main MCP server: https://api.agentpmt.com/mcp/
• AgentPMT REST invoke endpoint: https://api.agentpmt.com/products/purchase

这个 Skill 质量不错，文档清晰详细，示例充分，安装指引明确。优点是功能介绍完整、参数说明详细、风险提示到位，能满足大多数单邮件验证场景需求。不足是功能相对单一，主要依赖外部 API 调用，且缺少分类和行业标签信息，对中文用户可能存在一定的使用门槛。适合需要验证单个邮件地址的开发者或业务场景使用。