>>>> specified out there that applications could utilize... >>>> where n is your split width... tmp/n, new/n, cur/n.
> alternate you may use mdbox > http://wiki2.dovecot.org/MailboxFormat/dbox Both of these hold all messages in a single directory. So sdbox would be no advantage there. And mdbox does not support one message per file, nor without metadata added to it, so those needing that for other purposes would have no advantage. [There is a per file limit specified in bytes, not count. It's not clear what the behavior would be if a proposed new msg in a new file would exceed a lesser byte limit. Perhaps a safe bounce or queue.] I do like that they are reasonably well specified, publicly on a wiki as opposed to only in source, and have a comparison table of support on the parent page. All of which lead to easier review and adoption by interested parties.
