Webmail is a web application that allows you to work with an email account online through an Internet browser and without the need of setting up the account in a desktop computer e-mail app such as Microsoft Outlook or maybe Apple Mail. This will make it possible to make use of your e-mails from any destination as well as any laptop or computer if you're not able to use your personal computer - if you are on holiday and you drop by an Internet cafe, for instance. Webmail clients ordinarily do not offer as many possibilities as a common desktop app, nevertheless they still provide a number of options, such as sending and receiving e-mails, setting up custom signature and making use of address books. When you setup an email address in a desktop app, you have to use the IMAP protocol in the process in case you want to view all messages later using webmail, because the online client can't show emails from your PC if they have been previously downloaded using the POP mail protocol.