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The standard story states that Ray T sent the first mail between systems using an "@" in '71 - but years later RFC 733 in '77 - and RFC 805 as late as February '82 both have "host indicator" or "at indicator" defined as eitherat or @. (It's gone by RFC 821 in August '82). It would be interesting to know if this was ever used in practice. Snori (talk) 15:23, 9 July 2015 (UTC)
What separators were used outside of ARPAnet email?