Modest suffers the same disease as calendar, no full-text search..

This renders both apps close to unusable for business use.

emails are stored as individual files in N900's fs, so tracker (that currently indexes only filenames) or recoll/beagle port could index email contents for search.

Search needs to track changes in emails, ie. add new mails to index and delete deleted mail content.

Search should give results grouped/ordered by user config and list enough content/email metadata + link to open the actual mail from search results.