diff --git a/docs/provider/email.md b/docs/provider/email.md
index af512cd99..0e901cde4 100644
--- a/docs/provider/email.md
+++ b/docs/provider/email.md
@@ -17,3 +17,29 @@ authors: [kininaru]
     ![Email Config](/img/providers/emailconfig.png)
 
 4. Fill customized `Email Title` and `Email Content` and save.
+
+## Example
+
+Here we use MailHog as the SMTP server. [MailHog](https://github.com/mailhog/MailHog) is an email-testing tool with a fake SMTP server underneath.
+
+1. Deploy the MailHog service.
+
+Here the IP address for the MailHog service is `192.168.24.128`, and the SMTP service port is `1025`.
+
+![mailhog config](/img/providers/mailhog_conf.png)
+
+2. Create a Email provider.
+
+Fill the necessary information and save.
+
+![mailhog email provider](/img/providers/mailhog_email_provider_conf.png)
+
+3. Sending Test Email.
+
+First, click on the `Test SMTP Connection` button, if you see `provider: SMTP connected successfully`, it means that your Casdoor service can access the MailHog service.
+
+Second, click on the `Send Testing Email` button, if you see `Email sent successfully`, it means that the test email has been successfully sent from the `From address` to the `Test Email`.
+
+![mailhog send test email](/img/providers/mailhog_send_test_email.png)
+
+![mailhog recv test email](/img/providers/mailhog_recv_test_email.png)
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