- Requires the CSV file to be moved to MailUp servers before method is called
- Manages import and sending for a specific list. Differently from batch FTP imports from a CSV file, this method does not allow to import contacts to different lists. All recipients must be imported in the same list
- The file containing the recipients must be in CSV format (can also be provided in a compressed format using ZIP compression).The file and its fields must be structured following the guidelines contained in the Appendix B
- Cannot perform a check on the possible duplication of contacts in the file, so the customer's system that creates the file has to take on this check.