How do providers balance user control vs algorithmic filtering?

MBPs balance user control versus algorithmic filtering by offering customization options while maintaining baseline protections. Users can create rules, whitelist senders, and adjust spam sensitivity, but they cannot disable core security filters that protect against malware and phishing.

The default experience prioritizes algorithmic filtering because most users never adjust settings. MBPs know that requiring manual configuration would leave casual users unprotected. So they design smart defaults that work well for typical users while offering power users more control.

This balance affects senders because even if individual users want your mail, algorithmic decisions still apply first. Getting whitelisted by subscribers helps, but the best strategy is building reputation that satisfies the algorithms so you reach inboxes without requiring user intervention.