PulseMail is a top contender, with a smart inbox prioritization system that spots emails and puts them in categories based on their importance. It also can handle meeting requests, draft personalized email responses and offer daily analytics to help you understand how you're using email. PulseMail can integrate with other tools, so it's a good option for professionals and small businesses.
Another good option is Breezemail, an AI-powered email organizer that uses smart categories to keep you focused on the most important messages. It can create its own categories based on ChatGPT queries, so you can avoid the hassle of setting up filters to keep your inbox organized. Breezemail works with Outlook and Gmail, and you can use prebuilt categories or create your own, so you can customize the system to your needs.
If you prefer an open-source option, check out Inbox Zero, which Google recommends and that can automate tasks like bulk unsubscribing from newsletters and blocking cold emails. You can train the AI with plain English prompts and review its actions in planning mode. It integrates well with Gmail and Google Workspace, with features like a one-click newsletter cleaner and cold email blocker, and you can keep your data private with self-hosting options.