Just like everyone else before invention of Email and Document sharing? However, like every other business, no one is willing to slow down velocity for security reasons so now we are here. Unless you have a fix for "Line must go up", market pressures will always cause this.
In 1971 Ray Tomlinson sent the first mail message between two computers on the ARPANET, introducing the now-familiar address syntax with the '@' symbol designating the user's system address.[2][3][4][5] Over a series of RFCs, conventions were refined for sending mail messages over the File Transfer Protocol. Several other email networks developed in the 1970s and expanded subsequently.
Proprietary electronic mail systems began to emerge in the 1970s and early 1980s. IBM developed a primitive in-house solution for office automation over the period 1970–1972, and replaced it with OFS (Office System), providing mail transfer between individuals, in 1974.
