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NetWin Database Mode (g_maildir_netwin "true").

Warning! This feature is in Beta test stage, we have run it ourselves for several months and have had no problems. We haven't heard from any customers about any problems either. We would definitely recommend keeping a backup(as you should anyway) if you decide to go with this method or running a mirror that is using the old/standard maildir method.

How it works:

Instead of storing each mail message as an individual file messages are stored in 'bucket' files which contain many messages, an index file contains a list of the contents of all of the bucket files.

So a folder with 100 mail messages in it might look like this:

28/09/2005 05:15 p.m. 1,120 bkt.idx
28/09/2005 05:15 p.m. 0 bkt.lock
28/09/2005 05:15 p.m. 7,578 bkt_0.bkt
28/09/2005 05:15 p.m. 4,450 bkt_0.head
26/09/2005 05:09 p.m. 442,871 bkt_1127711348.bkt
26/09/2005 05:08 p.m. 31,668 bkt_1127711348.head

When a bucket file is partly empty due to deleted messages it is re-written.

New mesesages always go to bucket zero.

What advantages does it have

What disadvantagese does it have

How do I turn it on ?

Utility commands.

Command Decription
tellmail dir user@domain [folder] Show files in that inbox/folder
tellmail ndb_export user@domain foldername destination_path Export files to a directory
tellmail ndb_repair user@domain.name Repair index based on bucket files
tellmail ndb_convert Start convert process again