the part of AI agents nobody talks about: what happens when two agents try to use the same email inbox

been building agent infrastructure for a while and this is one of the messiest edge cases i keep seeing. most agent setups use a shared mailbox. works fine for one agent. breaks badly at scale. what goes wrong: - two agents poll the same inbox simultaneously - both read the same OTP email - one executes, one silently fails or retries on a expired code - no error surfaced to the orchestrator the fix isn't complicated but it's not obvious either. each agent needs its own dedicated inbox with isolated read locks. when agent A claims an email, agent B can't see it. this also means your deliverability reputation stays clean — you're not blasting from one shared identity. the other pattern that helps: long-poll on inbound instead of polling on a schedule. you fire GET /inbox/wait and it blocks until the email arrives (or times out). no cron, no missed messages between poll windows. curious how others are handling multi-agent email scenarios — shared inbox with locking, or fully isolated per-agent inboxes? submitted by /u/kumard3 [link] [留言]