Due to low costs, the possibility to create brand awareness and sales opportunities e-mail marketing has become one of the most important marketing tools for B2B companies. The automated dispatch of mailings should not only save the marketing department time, but also increase sales. The thesis was written as part of the professional activity as a marketing specialist. Since the company did not want to be named, it is referred to as a "case company". However, all variables, results and case examples correspond to the actual results. Since the case company used a newsletter tool but did not exploit its potential to automate mailing flows, the task was to investigate to what extent automated mailing flows can influence the interaction with...