Spelling

Spelling

There are several spelling variations that are occasionally the cause of vehement disagreement.[1][2]

email is the form officially required by IETF Request for Comments and working groups[3] and is also recognized in most dictionaries.[4][5][6][7][8][9]

e-mail is a form still recommended by some prominent journalistic and technical style guides. [10][11]

Less common forms include eMail and simply mail.

mail was the form used in the original RFC. The service is referred to as mail and a single piece of electronic mail is called a message.[12][13][14]

eMail, capitalizing only the letter M, was common among ARPANET users and early developers from Unix, CMS, AppleLink, eWorld, AOL, GEnie, and Hotmail.[citation needed]

EMail is a traditional form that has been used in RFCs for the "Author's Address"[13][14], and is expressly required "...for historical reasons...".[15]