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An email address consists of two parts, a local-part (sometimes a user name, but not always) and a domain; if the domain is a domain name rather than an IP address then the SMTP client uses the domain name to look up the mail exchange IP address. The general format of an email address is local-part@domain, e.g. jsmith@[192.168.1.2], jsmith ...
Email is also used. EMAIL was used by CompuServe starting in April 1981, which popularized the term. EMail is a traditional form used in RFCs for the "Author's Address". The service is often simply referred to as mail, and a single piece of electronic mail is called a message. The conventions for fields within emails—the "To", "From", "CC ...
Message-ID. Message-ID is a unique identifier for a digital message, most commonly a globally unique identifier used in email and Usenet newsgroups. [1] Message-IDs are required to have a specific format which is a subset of an email address [2] and be globally unique. No two different messages must ever have the same Message-ID.
2. In the "To" field, type the name or email address of your contact. 3. In the "Subject" field, type a brief summary of the email. 4. Type your message in the body of the email. 5. Click Send. Want to write your message using the full screen? Click the Expand email icon at the top of the message.
Microsoft account logo. A Microsoft account or MSA (previously known as Microsoft Passport,.NET Passport, and Windows Live ID) is a single sign-on personal user account for Microsoft customers to log in to consumer Microsoft services (like Outlook.com), devices running on one of Microsoft's current operating systems (e.g. Microsoft Windows computers and tablets, Xbox consoles), and Microsoft ...
Non-Internet email address. A wide variety of non-Internet email address formats were used in early email systems before the ubiquity of the john.smith@example.com form used by Internet mail systems since the 1980s - and a few are still used in specialised contexts. [citation needed]
To use Unicode in certain email header fields, e.g. subject lines, sender and recipient names, the Unicode text has to be encoded using a MIME "Encoded-Word" with a Unicode encoding as the charset. To use Unicode in domain part of email addresses, IDNA encoding must traditionally be used. Alternatively, SMTPUTF8 [3] allows the use of UTF-8 ...
X.400. X.400 is a suite of ITU-T recommendations that define the ITU-T Message Handling System (MHS). At one time, the designers of X.400 were expecting it to be the predominant form of email, but this role has been taken by the SMTP -based Internet e-mail. [1]