Admins can change the below settings for their entire organization in NetSuite by going to Setup> Company> General Preferences> Custom Preferences
Decide how you want to handle missing senders/recipients setting
With this setting, you have 3 options. To review those options and make a decision on how you want this handled, please click here. (Option 2 is our recommendation and the default setting for anyone who installs the bundle after September 7th, 2018).
Attach to Contact Company setting - When checked, emails attached to contact will automatically roll up to the parent company (please note this will create duplicate emails being stored).
Include Inline Images setting - When checked it will include inline images when saving file attachments to NetSuite.