Bulk export

Hi there,

Congratulations on an excellent plugin. I wonder if with the PRO version you can export in bulk all the emails logged. For example, to download a .zip file with all the emails sent (.eml) and their attachments during a selected period of time.

I’d like that feature as a backup for my emails to customers, since keeping all of them in the WP installation probably will take too much space.

Thank you!