Response Packet Structure
The check node of the output XML packet is presented by type SpamFilterCheckOutputType (spamfilter.xsd) and structured as follows:

- The result node is required. It wraps the response retrieved from the server. Data type: resultType (
common.xsd). - The status node is required. It specifies if the Spam Filtering service is installed on the server and allowed by Plesk license. Data type: string. Allowed values: ok | error.
- The errcode node is optional. Is returns the error code if the check operation fails. Data type: integer.
- The errtext node is optional. It returns the error message if the check operation fails. Data type: string.