hello,
when using Incredimail, there exists some files like "Deleted Items.imm", this file grows very fast, and it doesnt matter if u delete your mails in Incredimail , there always consists crap in these files, you find them in
I:\documents and Settings\User\Local Settings\Applicationdata\IM\Identities\{71893342-B6F5-11D9-B3F2-0030843AA98E}\Message Store
The same Problem with "Sent Items.imm", although the mails in Sent Folder dont exist anymore, these file still got all mail data.