a. What is an Email address? Explain its parts briefly.
Answers
Answer:
An email address is a unique identifier for an email account. It is used to both send and receive email messages over the Internet. Similar to physical mail, an email message requires an address for both the sender and recipient in order to be sent successfully.
Every email address has two main parts: a username and domain name. ... The username comes first, followed by an at (@) symbol, followed by the domain name. In the example below, "mail" is the username and "techterms.com" is the domain name.
Answer:
Explanation:
An email address identifies an email box to which email messages are delivered. A wide variety of formats were used in early email systems, but only a single format is used today, following the specifications[a] developed for Internet mail systems since the 1980s. This article uses the term email address to refer to the addr-spec defined in RFC 5322, not to the address that is commonly used; the difference is that an address may contain a display name, a comment, or both.
An email address such as [email protected] is made up of a local-part, an @ symbol, then a case-insensitive domain. Although the standard requires[1] the local part to be case-sensitive, it also urges that receiving hosts deliver messages in a case-independent fashion,[2] e.g., that the mail system at example.com treat John.Smith as equivalent to john.smith; some mail systems even treat them as equivalent to johnsmith.[3] Mail systems often limit their users' choice of name to a subset of the technically valid characters, and in some cases also limit which addresses it is possible to send mail to.