Xbox 360: Can You View Sent Messages? — No

The Xbox 360 does not store sent message history. Messages are fire-and-forget—once delivered, they're purged from the sender's local cache.

Why

• Limited system reserve (512 MB internal / HDD cache)
• Privacy-by-design for a shared living-room device
• Xbox Live message architecture: server-relayed, not locally archived

Workarounds

• Screenshot before sending (Guide button → Y)
• Copy text to a note on phone/PC before pasting into guide
• Xbox.com message history — Does not exist for 360 era; only Xbox One+ shows conversation threads
• Third-party apps — None official; avoid credential phishing

Modern Context

Xbox One / Series X|S / Xbox app / Game Bar do retain full message history synced to cloud. The 360's architecture simply didn't support it.

If you need a record, screenshot it. That's the only native way.