--- name: event-notifications-en-regions-endpoints title: Regions and endpoints description: Review region and connectivity options for interacting with IBM Cloud Event Notifications. last-updated: 2026-05-11 --- > ## Documentation Index > The table of contents for this documentation set is at https://cloud.ibm.com/docs/event-notifications?format=markdown > The index for all IBM Cloud docs is at: https://cloud.ibm.com/docs/llms.txt > Use these files to discover more information as needed. # Regions and endpoints {: #en-regions-endpoints} Review region and connectivity options for interacting with IBM Cloud Event Notifications. {: shortdesc} ## Available regions {: #en-regions} IBM Cloud Event Notifications is available in the following regions: - Dallas (`us-south`) - London (`eu-gb`) - Sydney (`au-syd`) - Frankfurt (`eu-de`) - Madrid (`eu-es`) - Toronto (`ca-tor`) - Tokyo (`jp-tok`) - Osaka (`jp-osa`) - Sao Paulo (`br-sao`) - Montreal (`ca-mon`) - Washington DC (`us-east`) - Chennai (`in-che`) - Mumbai (`in-mum`) You can create IBM Cloud Event Notifications resources in one of the supported IBM Cloud regions. ## Service endpoints {: #en-service-endpoints} Event Notifications offers two connectivity options for interacting with its service APIs. Public endpoints : By default, you can connect to resources in your account over the IBM Cloud public network. Your data is encrypted in transit by default that uses the Transport Security Layer (TLS) 1.2 protocol. Private endpoints : To further secure your connection, you can also enable [virtual routing and forwarding (VRF) and service endpoints](https://cloud.ibm.com/docs/account?topic=account-vrf-service-endpoint&interface=ui&format=markdown){: external} for your infrastructure account. When you enable VRF for your account, you can [connect to Event Notifications by using a private IP](https://cloud.ibm.com/docs/event-notifications?topic=event-notifications-en-service-connection&format=markdown) that is accessible only through the IBM Cloud private network. ### Public endpoints {: #en-public-endpoints} The following table contains the base URLs for the IBM Cloud Event Notifications API endpoints. When you call the API, use the URL that corresponds to the region where your service instance is deployed. Add the path for each method to form the complete API endpoint for your requests. | Location | Endpoint URL | |--------------|-------------------| | Dallas |`https://us-south.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | London |`https://eu-gb.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Sydney |`https://au-syd.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Frankfurt |`https://eu-de.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Madrid |`https://eu-es.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Toronto |`https://ca-tor.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Tokyo |`https://jp-tok.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Osaka |`https://jp-osa.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Sao Paulo | `https://br-sao.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Montreal | `https://ca-mon.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Washington DC | `https://us-east.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Chennai | `https://in-che.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Mumbai | `https://in-mum.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | {: caption="Public endpoints for interacting with Event Notifications by using APIs" caption-side="bottom"} ### Private endpoints {: #en-private-endpoints} If you need to manage your Event Notifications resources over a private network, see the following table to determine the API endpoints to use when you connect to the Event Notifications API. | Region | Endpoint URL | |--------------|-------------------| | Dallas |`https://private.us-south.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | London |`https://private.eu-gb.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Sydney |`https://private.au-syd.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Frankfurt |`https://private.eu-de.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Madrid |`https://private.eu-es.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Toronto |`https://private.ca-tor.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Tokyo |`https://private.jp-tok.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Osaka |`https://private.jp-osa.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Sao Paulo |`https://private.br-sao.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Montreal |`https://private.ca-mon.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Washington DC |`https://private.us-east.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Chennai |`https://private.in-che.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | | Mumbai |`https://private.in-mum.event-notifications.cloud.ibm.com/event-notifications/v1/instances/{guid}` | {: caption="Private endpoints for interacting with Event Notifications by using APIs" caption-side="bottom"} ## SMTP endpoints {: #en-smtp-endpoints} Event Notifications provides SMTP interface endpoints that allow you to send email notifications using standard SMTP protocol. You can connect to the SMTP interface using either public endpoints or private endpoints via Cloud Service Endpoints (CSE) and Virtual Private Endpoint (VPE) gateways. SMTP connections support two ports: - **Port 587**: Uses STARTTLS for encryption - **Port 465**: Uses implicit TLS/SSL for encryption The SMTP endpoints are available in the `us-south` (Dallas) and `eu-de` (Frankfurt) regions. Before you can use the SMTP interface, you must create an SMTP configuration and complete domain verification. For more information, see [Using the Event Notifications SMTP Interface](https://cloud.ibm.com/docs/event-notifications?topic=event-notifications-en-smtp-configurations&format=markdown). {: note} ### Dallas (us-south) SMTP endpoint {: #en-smtp-dallas-endpoint} - **SMTP Public Endpoint:** `smtp.us-south.event-notifications.cloud.ibm.com` - **SMTP Private Endpoint:** `private.smtp.us-south.event-notifications.cloud.ibm.com` Event Notifications instances in the following regions connect to this endpoint: Dallas (`us-south`), Toronto (`ca-tor`), Tokyo (`jp-tok`), Osaka (`jp-osa`), Sydney (`au-syd`), London (`eu-gb`), Sao Paulo (`br-sao`), Montreal (`ca-mon`), Chennai (`in-che`), and Washington DC (`us-east`). ### Frankfurt (eu-de) SMTP endpoint {: #en-smtp-frankfurt-endpoint} - **SMTP Public Endpoint:** `smtp.eu-de.event-notifications.cloud.ibm.com` - **SMTP Private Endpoint:** `private.smtp.eu-de.event-notifications.cloud.ibm.com` Event Notifications instances in the following regions connect to this endpoint: Frankfurt (`eu-de`) and Madrid (`eu-es`).