Fluxmail
Self-hosted email for AI agents and applications
Developer Tools·Productivity·Communication
What is Fluxmail?
Fluxmail gives AI agents and applications access to your existing email accounts. Self-host it and connect Gmail, Google Workspace, Outlook, Microsoft 365, Exchange, or IMAP/SMTP. Use MCP, REST, or the CLI to search and read mail, draft and send replies, schedule messages, and organize inboxes. Per-client permissions let you control which mailboxes and operations each integration can use. The free Personal plan supports one member and up to three mailboxes. Source is available on GitHub under Elastic License 2.0.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
You need to have golden moments where you can ask for a rating. In this case it could be when you tap on a stop and see a live tracking of a bus or train — you can actually see it moving on the map. That's a great moment to ask the customer for a rating where the customer is most likely to respond positively.
Time rating prompts to the app's wow moment, not session start
Rating prompts fire at the exact moment the user experiences the product's core magic (watching their bus crawl across the map live), not on session start or random N-th-launch heuristics. The resulting 75K+ five-star ratings on 5.2M downloads is what feeds the ASO flywheel — once you're top-10 for a keyword, ratings velocity decides whether you reach #1.
On advertising you're picking up pennies per user. On a subscriber you're making $10-$20 a month — maybe $60 a year. The amount of users you have compounds so quickly, and if you have heavy retention you've got these really thick layers of cash flow that come in every year.
Spotify vs Pandora: subscription compounds; ad-revenue picks up pennies
Pandora was the US incumbent when Spotify was a small Nordic startup. Spotify asked users to decide if the product was worth money — a hard ask — but subscription revenue at $60/year per user versus pennies per ad impression means compounding at entirely different rates. Each subscriber funds better product, which attracts more subscribers. Pandora optimised for reach; Spotify optimised for LTV. The chart of their revenues over the following decade tells the story.
There's a play for whatever you're stuck on.
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