Actually those "temporary" files are not so temporary. When you open an attachment from Outlook it creates real files, not pointers, under the username. I still have not been able to figure out the timing, but I have users who have "temporary" files (from opening attachments) going back 8 or 9 months. They now add up to over 6 Gb of
"temporary" files...per user.
We now disable, by policy, being able to open attachments if they are larger than 1 Mb. Or if they have a certain legal category. User have to save them deliberately, then look at them.
I mentioned this in another thread, but the more important reason, which Anne alluded to, is version control. Because Outlook creates a real file, if you make changes to a file opened via Outlook, it does NOT, repeat NOT, change the original. If you have any legal reason to be careful of content, do not open attachments in Outlook.
Gerry