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This is from a document saying how to find alternate extensionsUsing a console or putty session Login as rootType the command cd /tmp to change directory to the /tmp folderType the following command ainquire > dumpMB.txt to dmp all mailbox data to a filenamed dumpMB.txtThe system will respond with this:-SEARCH CRITERIA MAILBOXES: 00000000001 - 99999999999MWI: - PASSWD: - FCOS: -LCOS: - GCOS: - NCOS: -TCOS: -I INDEX: - B INDEX: - NB INDEX: -BILL NUM: -D ORDER: -EXT: - INDEX: - TUTORIAL: -ATTEND DN: - INDEX: - D CODE: -NAME: -COMMAND (A/B/C/D/E/F/G/H/I/J/K/L/M/N/O/P/Q/R/S/T/U/V/X):Type S to start the process - it may take a while depending on the number of mailboxes youhave so wait until the system responds and press X to exitYou can then sftp it from the server