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Can I check on the mail server or in Thunderbird whether an email was read?

Not reliably. A server may know that a message in a mailbox was marked as read, but not that a person read it, and no setting can force a recipient to confirm. Thunderbird can request a return receipt, which the recipient can refuse.

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In Thunderbird you request a return receipt in the Options of the message you are writing, and you decide how to answer other people’s requests in the privacy settings, under Return Receipts. A “read” flag can also be set by a phone app, a preview or the recipient marking the message, so it says little about real reading.

HawkOpen tracks only emails you send through it. It cannot look into anyone’s mailbox or server; it records image loads and clicks on your tracked emails and rates each event as an estimate.

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Related questions

More in this topic

  • How do I know if someone read my email?

    You can get three signals: a read receipt, if the recipient agrees to send one, a tracking image and a tracked link. None of them proves reading; only a reply or another deliberate action does, and HawkOpen rates opens and clicks as at most “likely” human.

  • Does Gmail have read receipts?

    Only in Google Workspace (work or school) accounts whose administrator has turned it on; personal Gmail accounts do not have read receipts. In personal Gmail you can use a tracker such as HawkOpen instead.

  • Why is the read receipt option missing or not working in Gmail?

    Most often the account is a personal Gmail account, which has no read receipts, or the Workspace administrator has not allowed them. When the option is there, a receipt still arrives only if the recipient’s program supports it and they agree.

  • How can I see if my Gmail message was opened without a Workspace read receipt?

    Use an email tracker. With the HawkOpen extension in Gmail (Chrome or Firefox), the copy of each recipient who consented to tracking gets an invisible image and tracked links; the free plan has no limit on tracked opens and tracks link clicks in 10 emails a month.

  • Does Outlook have read receipts and how do I request one?

    Yes. In Outlook you can request a read receipt for one message or for every message, but the recipient can refuse and many programs never send one. Where the option appears depends on your Outlook version and account type.

  • Why don’t Outlook read receipts arrive?

    A read receipt depends on the recipient: their program has to support it and they, or their settings, have to agree to send it. Personal Gmail, Apple Mail and many phone apps do not answer Outlook’s requests, and an organisation can block receipts for outside senders.

  • What is the difference between a delivery receipt, a read receipt and open tracking?

    A delivery receipt says the recipient’s server accepted the message; a read receipt says the recipient’s program reported an opening, if they agreed; open tracking records that a tracking image was loaded, with no answer from the recipient’s program, and HawkOpen uses it only for recipients who consented to it. None of them proves that a person read the email.

  • How do I enable read receipts in Google Workspace?

    Only an administrator can: in the Google Admin console, in the Gmail user settings under Email read receipts, they allow receipts and choose for which addresses. After that, users request a receipt in each message under More options.

  • Do read receipts work between Gmail and Outlook?

    Sometimes. The request travels with the email, but a receipt comes back only if the recipient’s program supports it and they agree; personal Gmail and many phone apps do not send receipts at all. A tracking image does not depend on the provider, but has limits of its own.

  • Can I tell if an email was read without the recipient knowing?

    Not with HawkOpen. It tracks only recipients whose consent is recorded for your company, and every email it tracks ends with a visible notice that it contains tracking elements, with the link “Do not track my activity”; no plan or setting removes it.

  • How do I request a confirmation of receipt for an email?

    In Outlook, open Options in a new message and request a delivery receipt or a read receipt; Gmail offers read receipts only in Workspace accounts. The surest way is to ask the recipient to confirm by replying.

  • Why does my Exchange or Microsoft 365 policy block read receipts?

    Read receipts are controlled by the mail system: in Exchange and Microsoft 365, an administrator can stop receipts going to or coming from outside the organisation, or route them elsewhere. Only that administrator can change it; HawkOpen does not use or alter read receipts.

  • Are read receipts reliable, and is it rude to request one?

    Not very reliable: a receipt arrives only if the recipient’s program supports it and they agree, and it can be sent when a message is merely previewed or marked as read. Whether a request feels rude depends on the relationship; many people find a receipt on routine emails pushy.

  • Do read receipts or email trackers reveal the recipient’s device or location?

    A read receipt is a short message with little more than the time. HawkOpen shows, for each request, its time, category and rule codes, the technical identification the request carried and at most the country of the network, never a city, a street or who the person is.

  • Can I force the recipient to send a read receipt?

    No. A read receipt always depends on the recipient’s program and choice. HawkOpen does not use receipts; it records requests for a tracking image and clicks on tracked links, which have their own limits, and every tracked email says it is tracked.

  • Can I request or turn off read receipts in iPhone Mail?

    Apple Mail on iPhone has no option to request read receipts. HawkOpen has no iPhone app either: it tracks emails you send from the HawkOpen dashboard or with the browser extension on a computer.

  • Do read receipts work for groups and mailing lists?

    Usually not: Gmail, for example, handles receipts only for individual accounts, and a group address has no single reader. HawkOpen avoids the problem by sending each recipient their own copy from the dashboard or a campaign; it cannot tell apart people behind one group address.

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