Again, shoving everything into one file is mbox, which is a recognized file format (if not database), and it does not help things that much. I have wondered th

Again, shoving everything into one file is mbox, which is a recognized file format (if not database), and it does not help things that much. I have wondered the Sqlite thing myself beyond my one criticism. If anything, you would love K9 Mail on Android, which does this out of necessity. And some people have made SQL and noSQL email stores. http://nosql.mypopescu.com/post/3083070885/couchdb-as-email-store http://nosql.mypopescu.com/post/3083070885/couchdb-as-email-... https://www.npmjs.com/package/haraka-nosql https://www.npmjs.com/package/haraka-nosql http://www.dbmail.org/ http://www.dbmail.org/