What a read receipt is
A read receipt is a notification that tells the sender of a message that the recipient has opened or read it. In messaging apps this often appears as a small marker, such as the blue ticks in WhatsApp or a seen label with a time. In email, a read receipt is a confirmation that the recipient opened the message. The goal is simple: to remove the uncertainty of wondering whether your message got through and was seen.
Delivered versus read
Messaging apps usually distinguish between two stages. Delivered means the message successfully reached the recipient's device, while read means they actually opened the chat and, presumably, saw it. WhatsApp shows this as one grey tick for sent, two grey ticks for delivered, and two blue ticks for read. Understanding the difference matters, because a delivered message may simply be waiting, unseen, rather than being deliberately ignored.
How they work
When you open a conversation, your app quietly sends a small signal back to the sender's app to update the status. In email, read receipts often work by requesting confirmation when the message is opened, or by embedding a tiny invisible image that loads when the email is viewed, signaling that it was seen. Because methods vary, email read receipts are far less reliable than the built-in ones in messaging apps.
The privacy trade-off
Read receipts cut both ways. They reassure a sender, but they also create social pressure, since the other person now knows you have seen their message and may expect a quick reply. Many people value the freedom to read a message and respond later without that pressure. This tension is exactly why most apps let you turn read receipts off, so you can read in peace, usually at the cost of not seeing others' receipts either.
Managing them
Most messaging apps let you disable read receipts in their privacy settings, and some let you control them per conversation. A common trick to read a message without triggering a receipt is to view a preview from the notification without opening the app. In email, you can usually decline to send a requested read receipt. Choosing your settings lets you balance keeping others informed against protecting your own time and privacy.
The bottom line
A read receipt confirms to a sender that their message has been opened, through cues like blue ticks or a seen label, with delivered and read meaning different things. They remove uncertainty but add social pressure, which is why nearly every app lets you switch them off. Knowing how they work, and how to control them, lets you decide how much of your reading habits you want to share.
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See also: What is a spam filter? Explained, What are location services? Explained.
Sources
Published date reflects the original event date (2026-10-23). This article is original Skillo editorial written from the sources above; facts were verified in September 2026.
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