

dbox
====


dbox is Dovecot's own high-performance mailbox format. The original version was introduced in v1.0 alpha4, but since then it has been completely redesigned in v1.1 series. 
dbox can be used in two ways: 

 1. One message per file, similar to >>Maildir<<. 
 2. Multiple messages per file, but unlike >>mbox<< multiple files per mailbox. (This isn't currently fully working.) 
One of the main reasons for dbox's high performance is that it uses Dovecot's index files as the primary storage for message flags and keywords. They're still backed up to the dbox files once in a while though. Using index files as the primary storage also means that the indexes don't have to be "synchronized". Dovecot tdlil00̮jZmG
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