Bulk Email Verification API

Validate email lists, clean CRM imports, detect disposable and role-account addresses, and check whether domains have MX, SPF, and DMARC records. The API supports JSON batches and CSV uploads through RapidAPI.

Open Bulk Email Verification API on RapidAPI

Base URL and authentication

https://bulk-email-verification-api.p.rapidapi.com

All requests authenticate through RapidAPI. JSON endpoints use these headers:

Header	Value
`Content-Type`	`application/json`
`X-RapidAPI-Key`	Your RapidAPI key
`X-RapidAPI-Host`	`bulk-email-verification-api.p.rapidapi.com`

CSV uploads use multipart/form-data; your HTTP client usually sets the exact Content-Type boundary automatically.

See Authentication, Rate limits, and Errors for shared behavior.

Response envelope

All endpoints return the standard ApiMask envelope:

{
  "success": true,
  "data": {},
  "error": null,
  "meta": {
    "request_id": "req_example"
  }
}

Endpoints

Endpoint	Method	Description
`/v1/email/bulk/validate`	`POST`	Validate up to 500 emails from JSON
`/v1/email/bulk/validate-csv`	`POST`	Validate up to 1,000 emails from a CSV upload
`/v1/email/domain/health`	`POST`	Check MX, SPF, and DMARC records for domains
`/v1/email/disposable/check`	`POST`	Batch-check disposable email domains
`/v1/email/role-account/check`	`POST`	Batch-check role-account addresses

Bulk validate emails

POST /v1/email/bulk/validate validates email syntax and can optionally check MX records, disposable domains, and role-account local parts.

Request body

Field	Type	Required	Default	Description
`emails`	`string[]`	Yes	-	Email addresses to validate. 1-500 items.
`check_mx`	`boolean`	No	`true`	Check whether each domain has MX records.
`check_disposable`	`boolean`	No	`true`	Detect disposable email domains.
`check_role_account`	`boolean`	No	`true`	Detect role accounts such as `support@`, `sales@`, and `info@`.

Example

curl --request POST \
  --url https://bulk-email-verification-api.p.rapidapi.com/v1/email/bulk/validate \
  --header "Content-Type: application/json" \
  --header "X-RapidAPI-Key: $RAPIDAPI_KEY" \
  --header "X-RapidAPI-Host: bulk-email-verification-api.p.rapidapi.com" \
  --data '{"emails":["[email protected]","[email protected]","[email protected]"],"check_mx":true,"check_disposable":true,"check_role_account":true}'

{
  "success": true,
  "data": {
    "results": [
      {
        "input": "[email protected]",
        "is_valid": true,
        "email": "[email protected]",
        "local_part": "hello",
        "domain": "example.com",
        "is_disposable": false,
        "has_mx_records": true,
        "is_role_account": false,
        "reason": null
      }
    ],
    "summary": {
      "total": 3,
      "valid": 3,
      "invalid": 0,
      "disposable": 1,
      "role_accounts": 1,
      "domains_with_mx": 3,
      "duplicates": 0
    }
  },
  "error": null,
  "meta": { "request_id": "req_example" }
}

CSV upload

POST /v1/email/bulk/validate-csv validates email addresses from an uploaded CSV file. The CSV can contain an email column; if it does not, the first column is treated as the email column.

Limits

Limit	Value
Rows	1,000 maximum
File size	512 KB maximum

Example

curl --request POST \
  --url https://bulk-email-verification-api.p.rapidapi.com/v1/email/bulk/validate-csv \
  --header "X-RapidAPI-Key: $RAPIDAPI_KEY" \
  --header "X-RapidAPI-Host: bulk-email-verification-api.p.rapidapi.com" \
  --form "[email protected]"

email,name
[email protected],Ada
[email protected],Support

Domain health

POST /v1/email/domain/health checks MX, SPF, and DMARC readiness for email domains.

Request body

Field	Type	Required	Description
`domains`	`string[]`	Yes	Domains to check. 1-500 items.

Example

curl --request POST \
  --url https://bulk-email-verification-api.p.rapidapi.com/v1/email/domain/health \
  --header "Content-Type: application/json" \
  --header "X-RapidAPI-Key: $RAPIDAPI_KEY" \
  --header "X-RapidAPI-Host: bulk-email-verification-api.p.rapidapi.com" \
  --data '{"domains":["example.com","apimask.dev"]}'

Disposable and role-account checks

Use these focused endpoints when you only need a single classification pass.

Endpoint	Body
`/v1/email/disposable/check`	`{ "emails": ["[email protected]"] }`
`/v1/email/role-account/check`	`{ "emails": ["[email protected]"] }`

Both endpoints accept 1-500 email addresses.

Notes

This API checks syntax, domains, MX records, disposable providers, role accounts, SPF, and DMARC.
SMTP mailbox probing is not included in V1.
Validation improves list quality but does not guarantee that a mailbox exists or that an email will be delivered.

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