Use Cases

Real people, real problems, real solutions.

Freelancer with 40+ emails per day

You manage 3 clients, each with their own email thread. Invoices arrive mixed with newsletters. Letterbot filters the noise: invoices surface as 🔴 Urgent with amounts and due dates extracted. You never miss a payment deadline again.

Developer with multiple inboxes

Work, personal, server alerts, client projects — 4 email accounts. Letterbot routes each to a separate Telegram chat. Server alerts go to a dedicated channel. Personal email stays private. No app-switching.

Small business owner worried about data privacy

Your business correspondence contains contracts, financial data, and client information. Sending it through US cloud servers feels wrong. Letterbot processes everything locally — IMAP connection to your own mail server, SQLite on your machine, zero telemetry.

Old laptop repurposed as an email assistant

That Celeron with 3 GB RAM collecting dust? Install Letterbot. It uses 40–120 MB RAM and runs 24/7 checking your email. Your old hardware gets a second life as a dedicated email filter.

Accountant tracking invoices and deadlines

Letterbot reads PDF and Excel attachments, extracts invoice amounts and due dates, and surfaces overdue items in the weekly digest. Obligation tracking catches "will send by Friday" promises.