Question

what is the difference between web based email account and email client based email account why are they also called online and offline email account

Answer 1

web emails
There are many webmail services available, most of which are free. Some of the most popular options are Google's Gmail, Microsoft's Outlook.com and Yahoo Mail. Each service has different features. For example, Gmail offers Google+ and Google Talk functionality, while Outloo

Email clients are desktop programs that can send and receive email messages. They are linked to email accounts through POP3 or IMAP addressing, which means they can handle email for accounts with ISPs and other non-webmail services. Email clients usually come with many features, like integration of RSS feeds, detailed address books, chat features for several services, filters, favorites folders and other useful tools for organizing and managing your contacts and email.