À la carte express uses the mass mailing to inform its customers about news, promotions etc. So they use DirectMail for it. Their website is already completed, the synchronization between the users database on the website and on DirectMail tools should be paid.
For this we have developed a technique by which the website sends a standard HTTP request when registering or changing a user to DirectMail to make a real-time syncing the two databases. It is no longer necessary to export / import for mass mailings.