Email client
A mail client (alternatively known as email client or e-mail client; more formally known as mail user agent or MUA; hereinafter, the Client) is any digital construct that an end-user utilizes to receive, access, and/or manage his or her emails.
is located in a computer network under its distinguishable hostname in order to accept, analyze, adjust, clarify, and transfer electronic mail messages (or, simply, emails) from mail clients to mail exchangers (MX hosts) and vice versa.
The Server can also refer to mail server software. More broadly, email software may refer to all the software utilized for mail clients, the Servers, or mail exchangers.
a software program in the category of groupware environments used to access and manage a user's email. The Client is meant to be a role. For example, a web application which provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client.
a computer program .
A web application which provides message management, composition, and reception functions may act as an email client, and "email client" may also refer to a piece of computer hardware or software whose primary or most visible role is to work as an email client.
Definitions
According to [[]],