This is a library and command line tool for working with HP TRIM VMBX email files. You can use this tool for extracting attachments and converting VMBX files to EML.
From source:
go get github.com/srnsw/vmbx/cmd
Or get a precompiled Windows 64-bit binary from the releases page.
To use the mail conversion function you also need to install a siegfried signature file on your computer (normally in a "siegfried" folder within your home directory). See siegfried for more information.
To extract attachments from a VMBX file, or set of files:
vmbx -dump FILE or DIR
To convert a VMBX file, or set of files, to EML format, do:
vmbx -mail FILE or DIR
If you haven't installed the siegfried signature file in a "siegfried" folder within your home directory, you can specify an alternate location with the "-sig" flag:
vmbx -sig "c:\default.sig" -mail FILE or DIR