> ## Documentation Index > Fetch the complete documentation index at: /help/llms.txt > Use this file to discover all available pages before exploring further. # Email opens and clicks > See who opened your campaign emails and clicked their links, follow up only with them, and know what an open does and doesn't prove. > [!NOTE] > > **Pro plan.** Opens and clicks come from campaign emails, and email steps are part of Pro and Agency. Each inbox is a paid add-on (US\$7 a month), not part of the free trial. See [Plans and billing](/help/account/billing.md). Kerux can tell you when a contact opens one of your campaign emails or clicks a link in it. A campaign can then follow up only with the people who engaged, and another campaign can start when it happens. > [!WARNING] > > Opens are an estimate, never proof. Some mail apps block images, so a real open is never seen. Others open every email on their own (for example Apple Mail with its privacy protection, or a company's security scanner that also follows the links). Kerux leaves out the opens and clicks flagged as automatic, but not every automatic one can be recognized. So **Not opened doesn't prove they didn't read it**, and **Opened doesn't prove a person read it**. A click is a stronger sign, and a reply is the only sure one. ## Turn it on or off Tracking is **on by default** for every campaign. It covers the emails of the campaign's **Send email** steps. **1. Open the campaign's settings** Open the campaign and click the **Settings** tab. **2. Use the switch** In **Entry and replies**, turn **Track email opens and clicks** on or off. It's saved right away. The **(i)** next to it explains what tracking adds to your emails. ![The Track email opens and clicks switch in a campaign's settings](https://mintcdn.com/kerux-f37add41/hxXnH5J2aAMkPLq4/images/track-emails.png?fit=max\&auto=format\&n=hxXnH5J2aAMkPLq4\&q=85\&s=e27ccdecaff9e6c0f9ce5c10070f80af) The change applies to emails sent from then on. Emails sent with tracking keep reporting opens and clicks; emails sent without it never will. ## How it works Each tracked email carries a tiny invisible image, and its links go through a tracking address before reaching yours. When the email's image loads or a link is clicked, Kerux hears about it from your inbox's connection. * Only web links count as clicks. That includes the links in rich text and HTML emails, and a picture or GIF with a link (see [Write and send emails](/help/campaigns/send-email.md)). * A click always counts as an open too, because the mail app may have hidden the open. * An open or a click is never a reply: the campaign keeps going. ## Where you see it * **The contact's timeline**: "Opened your email" (once per email) and "Clicked a link in your email" (once per link). * **The contact's journey**: on the email step, how many times it was opened, when first, and the links clicked. * **The Send email step's panel** (click the step on the canvas): how many emails it sent, opened and clicked, under the title. ![Opens and clicks on the email step of a contact's journey](https://mintcdn.com/kerux-f37add41/B5KYabzijnLOqqaq/images/email-journey.png?fit=max\&auto=format\&n=B5KYabzijnLOqqaq\&q=85\&s=1c22bac9aa6e26e1c95b9688249c8afb) * **Analytics**: the **Emails** card shows the campaign emails sent in the period and the share opened and clicked (for example "55% opened ยท 15% clicked"). It shows once you have sent emails in that period. The rates count only emails sent with tracking on, and the card says how many those were ("tracked: 36 of 40"), so turning tracking off in a campaign doesn't lower them. Opens can be over- or under-counted (privacy proxies open emails on their own, image blocking hides opens); clicks are more reliable. ## Follow up only with the people who engaged In an automation, the **If they react** step can wait for an email open or a click instead of a LinkedIn reaction. **1. Add the step after a Send email step** Click the **+** under the email step to open **Add a step**, then in **Conditions > Contact actions** pick **Opened your email** (waits 2 days) or **Clicked a link in your email** (waits 3 days). **2. Set the wait** In the step's panel, change **Wait** if you like. **Wait for** shows **The email opened** or **A link in the email clicked** (you can also add **If they react** from **Steps > Timing** and pick it there). **3. Connect the paths** The card reads, for example, "If they click a link within 3 days". Connect its paths: **Opened** / **Not opened (some mail apps hide opens)**, or **Clicked** / **No click**. You can also add **Replied**. What the contact sees in Kerux while waiting: **Waiting to see whether they open the email** or **Waiting to see whether they click a link in the email**. * The contact goes **Opened** or **Clicked** as soon as it happens during the wait, or at once if it already happened since they entered this campaign. Only this campaign's emails count: opening an email from another campaign doesn't move the contact here. * When the wait ends without it, the contact goes **Not opened** or **No click**. * A reply during the wait ends the contact's path, like any reply (or follows **Replied**, if you added it). * With tracking off in the campaign, its emails never report an open or a click. The launch check stops you and says so, with **Fix** to the campaign's **Settings** to turn **Track email opens and clicks** on. This step works in automations only, not in day sequences. Because opens are unreliable, prefer **Clicked a link in your email** (or a reply) for decisions that matter. ## Start another campaign The Kerux events **Email opened** and **Email link clicked** start a campaign when a contact opens one of your campaign emails (once per email) or clicks a link in one (once per link). **Email link clicked** can wait for **Only links containing** some text, for example `calendly.com` or `/pricing`, and its steps can use the link as `{{trigger.clicked_link}}`. See [Start a campaign from what happens in Kerux](/help/campaigns/kerux-triggers.md). For other tools, the `email.opened` and `email.clicked` webhooks fire at the same moments. See [Webhooks](/help/developers/webhooks.md). ## Privacy Tracking tells you when someone opened an email or clicked a link. For each open or click, Kerux keeps only the time, the link and whether it looked automatic. It never stores the person's IP address or device. Depending on where your contacts are, tracking may need their consent or a mention in your privacy notice (for example under GDPR). Check what applies to you, and turn tracking off for the campaigns where you don't want it. ## Common questions > [accordion] A contact replied, but Kerux says Not opened > > Their mail app hid the open (it blocked images). The reply is what counts: campaigns always react to it. > [accordion] Nobody ever opens or clicks > > Check that **Track email opens and clicks** is on in the campaign's **Settings**. Emails sent while it was off are never tracked. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.