Deletion of emails doesn't free up correct amount of space

I imported WinMail (as a test) into eM and then purged it.
The problemis that despite importing some 4 Gigabytes, the act of deleting the imported files (and emptying the trash) only freed up some 0.2GB in the mail_data.dat file.

Perhaps some optimising/compacting routine in future builds?

cheers

hello. It is managed by the Sqlite database itself - the compactor runs from time to time when the CPU load is low, so the data will be removed