To upload 1M+ emails from Outlook ".pst" files to Overview, you'll need to be comfortable on the command-line.
- Install LibPFF. On ubuntu,
sudo apt-get install pff-tools. On anything else, you'll need to Comple from source. - Download this gist's files somewhere
cdto the directory where you have a bunch of.pstfiles- Run
/path/to/gist/psts-to-pffexports.sh. This will create a bunch of subfolders and files. - Run
/path/to/gists/pffexports-to-emails-csv.rb. This will createemails.csv. - Rename
emails.csvto whatever name you want to see in Overview - Upload the CSV to Overview