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Dev.to
Dev.to
7/20/2026
How I Built MailOS: My Journey With Qwen Cloud

How I Built MailOS: My Journey With Qwen Cloud

Short summary

A developer recounts building MailOS, an AI email management system powered by Qwen Cloud on Alibaba Cloud. The system uses six specialized agents — Guardian, Classification, Memory, Newsletter Intelligence, Decision, and Negotiation — each handling one job. The Negotiation agent can autonomously go back-and-forth over email within set price ranges and round limits, with AI proposing and code deciding on money and risk matters.

  • MailOS uses six focused AI agents on Qwen Cloud for email triage, security, and negotiation
  • Negotiation agent autonomously handles back-and-forth pricing within hard round limits and confidence floors
  • AI proposes, code decides — no AI makes final calls on money or risk

Generated with AI, which can make mistakes.

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