RSRV_S_MAIL is an SAP Structure so does not store data like a database table does but can be used to process "For Maintaining E-mail Recipients" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately.
i.e. DATA: wa_RSRV_S_MAIL TYPE RSRV_S_MAIL .
Below is the documentation avaialable and full details of the fields which make up this Structure.
|Data Type||length (Decimals)||Check table||Description||Conversion Routine|
RSRV_S_MAIL - For Maintaining E-mail Recipients RSRV_S_HIER_INFO - Information about a Hierarchy RSRV_S_HIERARCHY_INFO - Information about a Hierarchy RSRV_S_HIER - Structure for the Hierarchy of the Test in Transaction RSRV RSRV_S_FIELDNAME_COL_COUNT - Table Field Name and Various Column Entries RSRV_S_EXTRA_APPL_LOG_FIELDS - Additional Display Fields for the Application Log