diff --git a/docs/sources/integrations/inbound-email/index.md b/docs/sources/integrations/inbound-email/index.md
index ef6add71e9..f5c78036bd 100644
--- a/docs/sources/integrations/inbound-email/index.md
+++ b/docs/sources/integrations/inbound-email/index.md
@@ -16,6 +16,10 @@ weight: 500
 
 Inbound Email integration will consume emails from dedicated email address and make alert groups from them.
 
+## Configure required environment variables
+
+See [Inbound Email Setup]({{< relref "../../open-source/_index.md#inbound-email-setup" >}}) for details.
+
 ## Configure Inbound Email integration for Grafana OnCall
 
 You must have an Admin role to create integrations in Grafana OnCall.
diff --git a/docs/sources/open-source/_index.md b/docs/sources/open-source/_index.md
index ae0ca4bbf9..6c9487b680 100644
--- a/docs/sources/open-source/_index.md
+++ b/docs/sources/open-source/_index.md
@@ -265,7 +265,9 @@ To configure Inbound Email integration for Grafana OnCall OSS populate env varia
 - `INBOUND_EMAIL_DOMAIN` - Inbound email domain
 - `INBOUND_EMAIL_WEBHOOK_SECRET` - Inbound email webhook secret
 
-You will also need to configure your ESP to forward messages to the following URL: `<ONCALL_ENGINE_PUBLIC_URL>/integrations/v1/inbound_email_webhook`.
+Required secret syntax: `part1ofsecret:part2ofsecret` (The colon `:` is a mandatory delimiter separating both parts of your secret.)
+
+You will also need to configure your ESP to forward messages to the following URL: `scheme://<INBOUND_EMAIL_WEBHOOK_SECRET>@<ONCALL_ENGINE_PUBLIC_URL>/integrations/v1/inbound_email_webhook`.
 
 ## Limits