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Response Codes

The Zoho Mail REST API returns various response codes to indicate the status of API requests, whether successful or failed.

CodeDescription
200SUCCESS - The API request was successful and completed without any errors. 
201CREATED -  A new resource has been successfully created as a result of the API request.
400BAD REQUEST - The input parameters provided in the request are invalid or incorrect. The requester must modify the input and resend the request.
401UNAUTHORIZED -The request requires valid authentication credentials, which are either missing or invalid.The user must provide proper authentication to access the requested resource.
403FORBIDDEN - The user is authenticated but not authorized to perform the requested action.
404NOT FOUND - The requested resource could not be found or the URL is invalid.
500INTERNAL ERROR - The server encountered an unexpected error while processing the request. Review the request and try again later.