Web-Application «Mail Client»

Abstract Electronic mail (email or e-mail) is probably one of the most popular technologies familiar to almost every user of the internet. Nowadays, e-mail is known as a reliable, efficient, and self-sufficient way of information exchange by sending text messages. In 2018, according to statistics from statistica.com, the number of e-mail users was about 3.8 billion. If we compare this number, even neglecting some accuracy, the total number of internet users will be tremendously high. According to web-canape.ru there are 4.5 billion users which equals 60% of the world's population as of 2020. As a result, it is easy to draw the conclusion that almost every internet user has an email address. High demand for email clients generated a lot of options on the market. Email exchange is one of the oldest technologies and as a result, users usually struggle to choose between available options. Some users just choose the first available option and go with it without doing any detailed research on the topic. Other users prefer a more selective approach and choose service based on their own detailed market analysis. Choice of an email client is also an important issue for commercial users, organizations and large companies. They may take into consideration factors such as cost of application or application security. These can be crucial for them when choosing an email client. The most relevant email clients with web application format will be included and reviewed in this final qualifying work. Based on the analyzed information, software will be developed which meets the definition of an email client and includes all general functions. This paper consists of 3 chapters, 46 pages, 31 pictures, 14 sources, 2 applications. Keywords — web-application; post client; e-mail; post protocols; SMTP; IMAP; Java; JavaMail; JavaScript.