Icon of Folders for search, onDisk Status- Glodaquilla-NG:

Folders for search, onDisk Status- Glodaquilla-NG: 1.5.2

by opto

Global Search/Indexing Enhancements/ On Disk Status for IMAP
Permits selective enabling and disabling of search indexing on folders or accounts - with inheritence. Extra columns can show whether a mail is stored on disk and its indexing status.