Question: Can you suggest a solution that allows me to search my entire email history quickly and easily?

If you want a service to search your entire email history, Shortwave is a good option. This AI-infused email service has smart search abilities that let you quickly find what you're looking for in your email history. It also has features like AI-generated emails, predictive autocomplete suggestions and customizable tabs for important emails. You can pay for several tiers of service, including a free version that indexes 90 days' worth of email.

Another option is Klu, an AI-powered search engine that can index multiple work apps, including Gmail. Klu presents a single search box to find information in services like Google Drive, Google Calendar, Slack and Notion. Its AI technology can provide immediate answers to specific questions and pull out specific information from integrated apps, so it can be a good way to index and search your email history.

Heyday is another AI-powered information retrieval system that processes documents, notes and conversations into insights and a searchable database. It can summarize emails and suggest new material, so it can be useful for professionals who need to process lots of information. With features like automatic meeting notes and contextualized search, Heyday can help you work more efficiently and make better decisions.

Last, Superhuman is an AI-powered tool that can help you process and search your email. It's got features like AI-powered writing, follow-up reminders and read status tracking. Superhuman works with both Gmail and Outlook, so it's a good option if you want to index your email history but also want to boost your productivity.