April 26, 2026

Messages are held in encrypted form and delivered once the recipient comes online.

When you send a message to someone who's offline, it's stored temporarily in encrypted form on EXTRA SAFE's infrastructure – unreadable without the recipient's private key. As soon as they reconnect, the message is delivered, and the stored copy is cleared.

Auto-delete timers start when the message is viewed, not when it's delivered. A message waiting for an offline recipient doesn't start its countdown until they actually open and see it.

  • How does E2EE work?

  • Where are messages stored?

  • What happens if a message fails?

  • What is EXTRA SAFE?

  • How do chats work?