Extended SMTP. Initially defined in RFC 1869 and extended thereafter.
See also ETRN.
Extended Simple Mail Transfer Protocol
abbreviation 1. educationally subnormal; formerly used to designate a person of limited intelligence who needs special schooling
[ez-nee, -ne] /ˈɛz ni, -nɛ/ noun 1. (in Anglo-Saxon England) a member of the lowest class; laborer. n. Old English esne “domestic slave,” from Proto-Germanic *asnjoz- “harvestman” (cf. Gothic asneis), from *asanoz- “harvest” (see earn).
[es-nuh-see] /ˈɛs nə si/ noun, Obsolete. (in English law) 1. the right of the oldest member of a coparcenary to have first choice of share upon division of the inheritance.
1. a combining form meaning “inner,” used in the formation of compound words: esonarthex. abbreviation 1. European Southern Observatory