How do you give agents a real inbox? Sending is easy, receiving replies is not

seckin-gueler · reddit · 2026-11-13

A developer building email-sending agents highlights a real gap: receiving replies — with correct threading, attachments and inbound webhooks — needs a true inbox, not just an SMTP relay. Most hosted options are US-only, which complicates EU/GDPR compliance. They built an EU-hosted alternative (mailgent.eu, per-agent inbox + MCP server) and asks how others solve the receive side: roll-your-own Postfix, US APIs, or EU-based services.

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