@kev A lot of business users have e-mail as main "on the record" mean of communication. As long as it is used for communicating "electronic letters" which can have attachments it work just fine.
When it is used as a substitute for a chat, telephone call, to receive advertisements it looses its purpose.
I am in the middle of transferring my gmail email offline. what I noticed is that all those chat-like emails from 1990' and 2000's are gone in 2010's. (gmail used to keep chats as emails as well)
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