Case, accents, and word matching

New searches use Contains by default. A word fragment can match. Case and accent differences do not prevent a match. Enable Whole word, Match case, or Match accents to narrow the result.

Database search covers stored text and previews. OpenSearch also covers full bodies. Final matching uses canonical content under current mailbox authorization. Locked content can require key unlock.

If search reports a missing required index version, ask the operator to update the index. A search failure does not justify deleting mail or storage.

See the text matching builder for detailed pattern controls.