It's not really the same... You are talking about hosting big mailboxes; the article talks about sending and receiving e-mail. Sent e-mails are probably just di

It's not really the same... You are talking about hosting big mailboxes; the article talks about sending and receiving e-mail. Sent e-mails are probably just discarded and incoming mails go into a processing pipeline, which is handled externally, which removes the need for a web interface to browse messages, search them and maintain backups.