1. Registered users: one-time mass mailing cannot exceed 100, one-hour mass mailing cannot exceed 200 (legal holidays 500), and daily mass mailing cannot exceed 1000 (legal holidays 2000);
2. Users who log in to 10655883 through the on-demand command DB: the number of group posts per hour does not exceed 100 (500 festivals), and it does not exceed 1000 (2000 festivals) every day. However, when submitting an appointment, the system will automatically send the submitted SMS in batches according to the above conditions.