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A message transfer agent receives mail from either another MTA, a mail submission agent (MSA), or a mail user agent (MUA). The transmission details are specified by the Simple Mail Transfer Protocol (SMTP). When a recipient mailbox of a message is not hosted locally, the message is relayed, that is, forwarded to another MTA.
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
Email (short for electronic mail; alternatively spelled e-mail) is a method of transmitting and receiving messages using electronic devices. It was conceived in the late–20th century as the digital version of, or counterpart to, mail (hence e- + mail ).
Mail Transfer Protocol, an obsolete network protocol that has been replaced by SMTP; Media Transfer Protocol, a Microsoft protocol for transferring images, music, etc. between a computer and a portable device; Message Transfer Part, part of Signaling System 7 (SS7) used for communication in the public switched telephone network (PSTN)
Smail-3 is a mail transfer agent (MTA) used on Unix-like operating systems. It is Free Software and is licensed under the GNU GPL.It aims to be a general and flexible mailer with extensive facilities for checking incoming e-mail and for routing between disparate networks.
Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur. Chemistry is the scientific discipline involved with elements and compounds composed of atoms , molecules and ions : their composition, structure, properties, behavior ...
The history of email entails an evolving set of technologies and standards that culminated in the email systems in use today. [1]Computer-based messaging between users of the same system became possible following the advent of time-sharing in the early 1960s, with a notable implementation by MIT's CTSS project in 1965.
Ionic transfer is the transfer of ions from one liquid phase to another. This is related to the phase transfer catalysts which are a special type of liquid-liquid extraction which is used in synthetic chemistry. For instance nitrate anions can be transferred between water and nitrobenzene.