Merge pull request #320 from kinde-oss/Feat/Email-content

Feat/email content

Author: DaveOrDead

src/content/docs/design/emails/email-notifications.mdx

@@ -52,6 +52,20 @@ For example:
 
 If you want emails to come from your app name instead (if it is different), then you can edit the business name in **Settings > Business > Details**, without it affecting your Kinde domain or other environment settings.
 
-## Change email content
+## Change the content of the one-time passcode (OTP) email (passwordless auth)
 
-It is not currently possible to change the content of emails.
+You can change the content of the OTP email if you use a [custom email sender](/get-started/connect/customize-email-sender/) for sending OTP emails. Once this is set up, you can make content changes as follows.
+
+1. In Kinde, go to **Design > Emails > Email content.**
+2. Select the language you want to edit. Only [languages you have selected](/design/pages/internationalization/) in your business are available.
+3. You can edit the subject line, body content, and disclaimer footer. Use the placeholders to personalize and define where the code appears.
+4. When you have made your changes, select **Save**. The new email content will now be sent.
+
+## Add sign-in code to the email subject line (passwordless auth)
+
+You can include the sign-in code in the subject line of OTP emails to make it visible for users in notifications. Note that it is less secure to do this, as the code can be seen by anyone when notifications are displayed openly on devices.
+
+1. In Kinde, go to **Design > Emails > Email content.**
+2. Select the language you want to edit. Only [languages you have selected](/design/pages/internationalization/) in your business are available.
+3. In the subject line field, include the `${code}` placeholder. This is where the code will appear. E.g. Enter `${code}` for access.
+4. Select **Save**.