> ## Documentation Index
> Fetch the complete documentation index at: https://docs.inboxapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Message icons on X

> What the red undelivered and failed-to-send icons mean on encrypted X messages, and what to do.

Red icons can appear on encrypted X messages sent around a change in X's encryption. Your messages stay visible in Inboxapp either way.

## Undelivered

A red **undelivered** icon marks an older encrypted message that may not have reached the recipient.

No action is needed. New messages send normally. If you didn't use XChat before 21 Jan 2026, you're not affected.

## Failed to send

A red **failed to send** icon means X didn't accept that message for delivery. The conversation may also show a red dot.

| Message type | What to do |
| - | - |
| Manual message | **Resend** to deliver it again (the failed copy is removed), or **Delete** it |
| Campaign message | Nothing — Inboxapp reschedules it automatically |

If the other person already replied, they received your messages.

## Related

* [XChat and your PIN](/help/platforms/x/xchat)
* [Messages not syncing](/help/troubleshooting/messages-not-syncing-try-these-fixes)

Still stuck? Contact support from the app.


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