Every Solana address is an inbox
INBX8hG4...px2
8 OPEN / 3 UNREAD
Gx72...keQ14:22
4juN...91f11:05
Ao1P...mv8YESTERDAY
Ct5r...29XAUG 12
Bn8k...q4TAUG 11
4juN...91f6 MESSAGES
YESTERDAY
Sent the invoice. 240 USDC, same wallet as last time.
11:02Got it. Paying tonight.
11:04TODAY
···No rush. I'll hold the files until then.
09:41Message 4juN...91fSend
If the wallet has never opened Inbx, the message waits. It appears the moment they connect.