The size of a data file

[Guest]

I moved from Gmail POP3 to Gmail IMAP protocol. So I created new account in
Outlook 2007. But I keep the old data file, cause there is my calendar, notes
and so on. Problem is, that even I erased all emails, the old data file has
still over 1GB (it was like that before I erased mails). Why? What makes it
be that big?

 

[neo [mvp outlook]]

Outlook doesn't automatically compress the pst to reclaim the vacated drive
space. Basic rule of thumb is think of PST files like Access databases. As
you delete/remove items from a PST, the file doesn't shrink. Outlook just
reuses that whitespace when needed.

Now with that said, right click on "personal folders" folder and select
properties > advanced button > compact.

/neo

ps - don't use OL2007, but hopefully the steps are close to OL2003