What setting is related to the removal of English email signatures?

The choice indicating that the setting related to the removal of English email signatures is "On for new indexes only" suggests that this feature is specifically designed for newly created indexes and does not retroactively apply to existing ones. This indicates a thoughtful design in project management, ensuring that existing projects or communications remain unchanged while allowing new setups to adopt updated configurations.

This approach allows for flexibility and control over the content that will be included in emails associated with new indexes, ensuring that the transition to removing English email signatures does not disrupt or confuse users who might be utilized to their presence in older indexes. It highlights a consideration of user experience and the management of communication standards across different projects.

Understanding this choice can help in managing project settings effectively, ensuring that only new instances conform to this updated requirement while preserving the integrity of existing communications.