As computerization and the Internet have become ubiquitous and electronic mail constitutes the basis of digital communications, it is hard to overestimate the meaning of email clients and their supplementary tools. Although many Internet users prefer a simpler and lighter web interface when they need to access their mailboxes, business and corporate users rarely ignore the vast scope of extra capabilities offered by modern email clients. Presently there is a variety of email clients to satisfy a most fastidious user.