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    Direct Mail:ValidateEmail

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    Direct Mail:ValidateEmail

    Last Updated:Jul 14, 2026

    Validates an email address.

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    RAM authorization

    The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

    • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

    • API: The API that you can call to perform the action.

    • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

    • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

      • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

      • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

    • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

    • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

    Action

    Access level

    Resource type

    Condition key

    Dependent action

    dm:ValidateEmail

    none

    *All Resource

    *

    		 None None

    Request syntax

    POST  HTTP/1.1

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    Email

    string

    Yes

    The email address to validate.

    xxx@yyy.com
    Timeout

    integer

    No

    The timeout period. Default value: 60 seconds.

    20
    CheckGraylist

    boolean

    No

    Specifies whether to check the graylist. Default value: false. The result is asynchronously notified through EventBridge.

    true
    ProbeType

    string

    No

    The probe type. Valid values:

    • FULL: Enables all detection capabilities, including SMTP probing. Because SMTP probing involves remote connections, the overall latency is high. This value is suitable for scenarios that are not sensitive to response time. Each detection consumes 1 address validation quota.

    • BASIC_ONLY: Enables all detection capabilities except SMTP probing, with low latency. This value is suitable for scenarios that are sensitive to response time, such as real-time validation during registration to check whether an email address is a disposable mailbox or an MX-forwarded abnormal address, to prevent batch registration by the cyber underground economy chain. Each detection consumes 1/3 of an address validation quota.

    FULL

    Response elements

    Element

    Type

    Description

    Example

    object

    Schema of Response

    RequestId

    string

    The request ID.

    xxxx-xxxx-xxxx-xxxx
    Status

    string

    The email address status obtained from validation.

    Valid values:

    • VALID :

      Valid address.

    • CATCHALL :

      Catch-all address, indicating that the domain accepts emails sent to all non-existent mailbox addresses under the domain name.

    • UNKNOWN :

      Unknown status address.

    • INVALID :

      Invalid address.

    • DONOTMAIL :

      Abnormal address that can be excluded in marketing scenarios.

    VALID
    SubStatus

    string

    The email address sub-status obtained from validation, which provides a detailed description of the status.

    Valid values:

    • NO_DNS_ENTRIES :

      Invalid address. No DNS records exist.

    • MISSPELLED :

      Invalid address. The address is misspelled.

    • DOES_NOT_ACCEPT_MAIL :

      Invalid address. The mail server does not accept emails.

    • MAILBOX_NOT_EXISTS :

      Invalid address. The mailbox does not exist.

    • SYSTEM_ERROR :

      Unknown status. A system error occurred.

    • MX_FORWARD :

      Abnormal address. MX forwarding is configured.

    • SYNTAX_INVALID :

      Invalid address. A syntax error exists.

    • ROLE_ACCOUNT :

      Abnormal address. The address is a role account, such as role@, info@, or contact@.

    • SMTP_CONNECT_FAILED :

      Unknown status. Failed to connect to the remote SMTP server.

    • DISABLED :

      Invalid address. The mailbox has been disabled.

    • UNSPECIFIED :

      Unspecified. This value may be returned for valid, catch-all, or unknown status addresses.

    • IP_UNROUTABLE :

      Invalid address. The mail server IP address is unreachable.

    • GRAY_LIST :

      Unknown status. The address is on the graylist.

    • MAILBOX_FULL :

      Invalid address. The mailbox is full.

    • DISPOSABLE :

      Abnormal address. The address is a disposable mailbox on the blacklist.

    • TIMEOUT_EXCEEDED :

      Unknown status. The specified timeout period is exceeded.

    UNSPECIFIED
    Provider

    string

    The email provider classification of the address.

    Valid values:

    • Others :

      Others.

    • Yahoo :

      Yahoo

    • Gmx :

      Gmx

    • MailDotCom :

      MailDotCom

    • Tencent :

      Tencent

    • Gmail :

      Gmail

    • Outlook :

      Outlook

    • Zoho :

      Zoho

    • Proton :

      Proton

    • Netease :

      Netease

    • Icloud :

      Icloud

    • Webde :

      Webde

    Gmail
    IsFreeMail

    boolean

    Indicates whether the address is a free mailbox.

    Valid values:

    • true :

      true

    • false :

      false

    true
    LocalPart

    string

    The local part of the email address parsed from syntax validation (lowercased and with the plus-sign portion removed).

    xxx
    DomainPart

    string

    The domain part of the email address parsed from syntax validation (lowercased).

    yyy.com

    Examples

    Success response

    JSON format

    {
  "RequestId": "xxxx-xxxx-xxxx-xxxx",
  "Status": "VALID",
  "SubStatus": "UNSPECIFIED",
  "Provider": "Gmail",
  "IsFreeMail": true,
  "LocalPart": "xxx",
  "DomainPart": "yyy.com"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.