According to this link, for *unsynchronized* message, the message body remains on the server until the user clicks on the message in TB's message list: https://support.mo… (funda kabanzi)
According to this link, for *unsynchronized* message, the message body remains on the server until the user clicks on the message in TB's message list: https://support.mozilla.org/en-US/kb/imap-synchronization#w_synchronization
TB has a Message Synchronizing setting "Keep messages in all folders for this account on this computer", with "Avanced" settings to "Download" "for offline use" on the basis of individual folders. However, I can' find a setting to control whether TB downloads (i) just the headers; or (ii) headers, bodies, and/or attachments.
(1) Is it the case that TB will *always* download just headers until users click on it in the message list, at which point it becomes a "synchronized message" (as defined above) and locally retained in its entirety?
(2) If so, is there a way to have TB always download messages+body+attachments without having to click each one?
(3) On the other end of the bandwidth usage spectrum, is there a way to have TB not even download headers (say, upon startup) until the user actually enters the folder for viewing?