Clean Inbox for Gmail Alternatives

Inbox Zero is an open-source, Google-backed personal AI assistant that can help you wrestle your email life under control. It can automate tasks like unsubscribing from newsletters and blocking cold emails. It offers automated responses based on your own rules, a one-click newsletter cleaner, and cold email blocker. It integrates with Gmail and Google Workspace and can be self-hosted for better data privacy.

Another good alternative is Breezemail, an AI-powered email organizer that uses smart categories to keep important messages in your inbox. It's an extension for Outlook and Gmail that offers prebuilt categories like Newsletters and Promotions, but you can create your own, too. It's got strong security and privacy, with a focus on protecting your data.

If you want a more complete email management system, SaneBox could be a good choice. It uses machine learning algorithms to sort emails into folders based on priority, and it's got other features like BlackHole to block unwanted senders, Snooze to delay emails, and a Daily Digest to summarize non-priority messages. It supports multiple email services including Gmail and Microsoft 365, and it's got strong security with annual Google Restricted Scopes verification.