Will the email ecosystem become transparent to end users?

Limited transparency increase is likely. BIMI makes authentication visible through logos. Some MBPs expose **sender reputation** to recipients. User control over filtering increases.

Full transparency unlikely: complexity would overwhelm typical users, competitive dynamics prevent full disclosure, and detailed transparency enables gaming. Recipients benefit from better outcomes, not technical understanding.

Likely evolution: more visual trust signals (BIMI, verification badges), better user controls over preferences, and improved defaults protecting users. Transparency improves where it helps user decisions without requiring technical understanding.