I have exim installed and configured as "internet site; mail is sent and received directly using SMTP". Mail is stored in /home/*user*/Maildir and it is really there. I can send and receive mail ...
For representing the logical email folder structure, a "Maildir++" format exists that was first implemented by the Courier mail server, thus sometimes also being referred to as the "Courier" format. ...
By default, thunderbird stores in mbox fromat, when you use Config Editor and search for mail.serverDefaultStoreContractID you find out its value: @mozilla.org/msgstore/berkeleystore;1 If you want to ...