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A number of email systems support "sub-addressing" (also known as "plus" or "tagged" addressing) where a tag can be appended to the "local part" of an email address — the part to the left of the "@" — but with the modified address being an alias to the unmodified address. For example, the address joeuser+tag@example.com denotes the same ...
Electronic mailing lists and email aliases are typical examples. RFC 5321, defines an email address as a character string that identifies a user to whom mail will be sent or a location into which mail will be deposited. The term mailbox refers to that depository. In that sense, the terms mailbox and address can be used interchangeably.
Email spam, also referred to as junk email, spam mail, or simply spam, is unsolicited messages sent in bulk by email . The name comes from a Monty Python sketch in which the name of the canned pork product Spam is ubiquitous, unavoidable, and repetitive. [1]
A spamtrap is a honeypot used to collect spam.. Spamtraps are usually e-mail addresses that are created not for communication, but rather to lure spam. In order to prevent legitimate email from being invited, the e-mail address will typically only be published in a location hidden from view such that an automated e-mail address harvester (used by spammers) can find the email address, but no ...
Similarly, some e-mail systems use unique per-message return-paths, for example variable envelope return path (VERP) for mailing lists, Sender Rewriting Scheme for forwarded e-mail, Bounce Address Tag Validation for backscatter protection, etc. If an exact match on the sender address is required, every e-mail from such systems will be delayed.
Within the Internet email system, a message transfer agent (MTA), or mail transfer agent, or mail relay is software that transfers electronic mail messages from one computer to another using SMTP. The terms mail server, mail exchanger, and MX host are also used in some contexts.
An X.400 address is technically referred to as an Originator/Recipient (OR) address. It has two purposes: Mailbox identification – either the originator or recipient. Global domain identification – where a given mailbox is located. 1984 defined an OR address as an X.400 address that identified where the user is located.
In computers and technology, a postmaster is the administrator of a mail server.Nearly every domain should have the e-mail address postmaster@example.com where errors in e-mail processing are directed.