An alias is a way of forwarding an e-mail address to one or more new destinations.
Star-like symbol, ASCII code 42 decimal. Usually rendered six-pointed, but has also been spotted with five or eight points.
Returned, undeliverable mail. Also the act of returning
undeliverable mail. Bounces are returned to the sender address
in the envelope
Dynamic|Distributed Name Server|System. A mechanism on internet to find addresses and other things associated with host names.
Information about a mail message that is not in the header.
This information is used by MTAs
The initial part of a mail message, containing more or less
meta information about the message; who sent it, what it is
about, what it looks like, to whom you are to answer, etc.
The structure and meaning is described in RFC
A destination where mails are sent to. It is more general than your in-box that contains the mails delivered to you. A mailbox can also be a program (which prints the mail to a printer) or other things.
The part after the @ of an email address. This is often called the "fully qualified host name", but with more modern mail transport (MX records), it's not really a host any more. So I prefer the term "domain".
A "channel" for sendmail via which to output mails. This is
a very general concept, including talking SMTP
Translate an address. This is the pure act of translation;
it does not necessarily mean that the mail gets sent to another
place. For redirecting e-mails there is aliasing
Mail Transfer Agent. A program that transfers mail from one place to another. Sendmail is an MTA.
Mail User Agent. A program that manages mail messages (on behalf of a user). Eudora, elm, pine, etc. are examples of MUAs.
Place where to send the bounce
Request For Comments. Documents written as proposal for a
standard on the internet. They do not always make it to standard,
but the ones about SMTP
Simple Mail Transfer Protocol. A commonly used protocol
(language) used by MTAs
Unix to Unix CoPy. A protocol used on many unix systems to transfer files between them. E-mail can also be transferred with this system.