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  5. Open Telekom Cloud SMN API Overview
  6. Application Restrictions

Application Restrictions

To avoid the attacks toward mobile numbers and email addresses, SMN exerts the flow control on critical APIs as follows:

  • API for adding a subscriber: SMN publishes a confirmation message to terminals, such as a mobile number or an email address. Flow control is triggered when the total number of confirmation messages exceeds a specific threshold. SMN stops sending a confirmation message to terminals in the flow control period.
  • API for directly publishing an SMS message: SMN controls the SMS publishing frequency and total SMS numbers of a single mobile number.