What a read receipt tells you
A read receipt in Outlook is a notification that tells you when someone opened an email you sent to them. It does not tell you whether they read it carefully, understood it, or will act on it — only that the message arrived in their inbox and they opened it at a specific date and time.
Read receipts work only when the person who received your email has them turned on in their own Outlook settings. If their read receipts are disabled, you will not get a notification even if they open the message. Many people turn them off because they find constant notifications intrusive, so a missing read receipt does not mean someone ignored you.
In Outlook, read receipts appear as a separate message in your inbox, usually with a subject line like "Read: [Original Subject]". You can also request a read receipt when you send an email, and Outlook will ask the recipient for permission to send you one.
Key Takeaways
- A read receipt confirms someone opened your email at a specific time, but not whether they understood or acted on it.
- Read receipts only work if the recipient has them enabled in their Outlook settings, so no notification does not mean the email was ignored.
- You request a read receipt when you send an email, and the recipient's Outlook will ask them for permission to send one back.
- Read receipts can help you spot phishing emails by showing you when a suspicious message was actually opened, which may reveal timing that does not match the sender's story.
How to request a read receipt when you send an email
Open a new email in Outlook and compose your message. Before you send it, look for the Options tab in the ribbon at the top of the window. Click Options, then look for a button labeled Request a Read Receipt or Request Delivery Receipt. Click it to enable read receipts for that email.
When you send the email, the recipient will see a prompt asking whether they want to send you a read receipt. They can choose yes or no. If they choose yes, you will receive a notification in your inbox. If they choose no or ignore the prompt, you will not get a read receipt, even though the email was delivered.
You can also set Outlook to request read receipts on all emails you send. Go to File > Options > Mail, then scroll down to Tracking. Check the box next to Request a read receipt for all messages I send. This applies to every email you send unless you turn it off for a specific message.
Where to find read receipts you receive
When someone sends you a read receipt, it arrives as a message in your inbox with a subject line that starts with "Read:". You can search for these messages by typing "read:" in the Outlook search box at the top of your inbox. This will show you all the read receipts you have received.
Read receipts also appear in your Sent folder if you open the original email you sent. At the top of the message, you will see a line that says something like "This message was read on [Date] at [Time]". This tells you when the recipient opened it. If multiple people received the email and some sent read receipts, you will see a separate notification for each person.
You can delete read receipts like any other email. They do not affect your original message or the recipient's copy.
Using read receipts to spot suspicious emails
Read receipts can help you identify phishing emails or scams. If you receive an email claiming to be from your bank or a service you use, and the sender is asking you to click a link or provide information, you can check when it was actually opened. Scammers often send emails in bulk at odd hours or claim urgency that does not match the timestamp.
For example, if you receive an email claiming to be an urgent alert from your bank, but the read receipt shows it was opened at 3 a.m. on a Sunday, that timing mismatch is a red flag. Banks do send alerts at any hour, but the combination of suspicious timing, a request for personal information, and an unfamiliar sender address is worth investigating further.
Read receipts are most useful when combined with other checks: looking at the sender's actual email address (not just the display name), checking whether the links match the official website, and verifying the message with the organization directly by calling their phone number from your records.
Why someone might not send you a read receipt
The most common reason you do not receive a read receipt is that the recipient has them turned off. In Outlook, users can disable read receipts in their settings, and many people do this to avoid constant notifications. Some workplaces also disable read receipts by default for all employees.
Another reason is that the recipient may have declined the read receipt prompt when it appeared. Outlook asks for permission each time, so even if someone has read receipts enabled, they can choose not to send one for a specific email.
Mobile versions of Outlook sometimes handle read receipts differently than the desktop version. A recipient using Outlook on their phone may not see the read receipt prompt at all, or it may not send even if they open the email. If you need to know whether someone has read an important message, it is safer to ask them directly or follow up with a phone call.
The difference between read receipts and delivery receipts
Outlook offers two types of receipts, and they tell you different things. A delivery receipt confirms that your email reached the recipient's mail server — it arrived in their inbox. A read receipt confirms that the recipient actually opened the message.
You can request both at the same time when you send an email. A delivery receipt will come back quickly, usually within minutes. A read receipt may take much longer or never arrive, depending on whether the recipient opens the email and whether they have read receipts enabled.
If you get a delivery receipt but no read receipt, you know the email arrived safely but the recipient has not opened it yet, or they have read receipts turned off. If you get neither, the email may not have been delivered at all, which usually means an incorrect email address or a problem with the mail server.
What read receipts cannot tell you
A read receipt shows only that someone opened your email. It does not show how long they spent reading it, whether they scrolled through the entire message, or whether they understood what you wrote. Someone might open an email by accident, see it is not relevant, and close it when ready — and you would still get a read receipt.
Read receipts also do not tell you whether the person who opened the email is the person whose name is on the account. If you send an email to someone at work, a colleague might open it from their shared inbox, and you would receive a read receipt without knowing who actually read it.
For these reasons, read receipts are most useful for confirming that a message reached someone and got their attention, not for measuring engagement or understanding. If you need to know whether someone understood your message or will take action, the only reliable way is to ask them directly.
Frequently Asked Questions
Can I see a read receipt if I am using Outlook on my phone?
Yes, but the experience is different from the desktop version. On Outlook mobile, read receipts appear as notifications or in your inbox like regular messages. However, the mobile app may not always request or send read receipts reliably, especially if you are using an older version of the app. For important messages where you need to confirm someone has read them, the desktop version is more dependable.
What happens if I turn off read receipts in my own settings?
When you disable read receipts in your Outlook settings, people who send you emails and request read receipts will not receive notifications when you open their messages. You will still see read receipts that others send to you. Turning off read receipts does not affect your ability to request them from others or to receive them.
Can someone fake a read receipt or send me one without actually opening the email?
Outlook's read receipt system is built into the email protocol, so it is difficult to fake without technical knowledge. However, it is not impossible — someone with email administration access or advanced technical skills could theoretically manipulate read receipts. For most everyday purposes, you can trust that a read receipt means the email was opened, but do not rely on it as absolute proof if the stakes are very high.
Do read receipts work with emails sent outside my organization?
Read receipts work best when both people are using Outlook or compatible email systems. If you send an email to someone using Gmail, Yahoo, or another email provider, they may not see the read receipt request at all, or their system may not support sending one back. Some organizations also block read receipts for security reasons, so external emails are less likely to generate receipts than internal ones.
Why did I get a read receipt but the person says they never opened the email?
This can happen if someone else with access to their inbox opened the email, or if their email client opened it automatically for preview purposes. Some email systems also generate read receipts when messages are synced across devices. If there is a discrepancy, the safest approach is to follow up directly and ask whether they received and read your message.