The thesis deals with the use of personalization in e-mail marketing communication of the MALL.CZ online store. The aim of the work was to create and verify in practice whether personalized e-mails generate better results compared to the original versions without personalised variables. The email templates were prepared in HTML in combination with the Jinja2 templating language, which allows to insert variables into emails in the Exponea platform. The results of the personalized emails confirmed that it makes sense to actively work with customer data when working with emails. Almost all of the metrics tracked saw positive increases, in some cases by several times.Diplomová práce se zabývá využitím personalizace v e-mail marketingové komunik...