When You Unblock Do Messages Come Through

Messages sent while blocked only reach WhatsApp's servers before being rejected. They will always show a single grey tick on the sender's end and will never update to "delivered" or appear in your chat.

This is by design for privacy and security: when you unblock do messages come through

Many people get confused because the sender sometimes sees “Delivered” (especially on iMessage). This is a technical limitation, not a guarantee you received the message. Apple’s servers may acknowledge receipt to the sender’s device, but your device never downloads it. When you unblock, your phone does not go back and request those old messages. Messages sent while blocked only reach WhatsApp's servers

Messages sent while a contact is blocked generally do not appear after unblocking, as most platforms treat the block as a complete severance of communication, allowing only future messages to pass [1, 2, 3, 4, 5, 6]. While iMessage, WhatsApp, and social media apps do not deliver these lost messages, some Android devices may store blocked SMS in a "Spam & Blocked" folder [7]. You can check your device's specific blocking settings to confirm if any messages were stored. AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response Show all This is a technical limitation, not a guarantee

"No, messages sent while you were blocked do not come through. Any texts sent during that period are permanently lost and will not be delivered retroactively. You will only receive new messages sent after you unblock the contact."

While unblocking reopens the door for future communication, the messages sent during the "dark period" are typically discarded by the apps' servers to protect user privacy and reduce data clutter. Platform-Specific Breakdown