> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://sensorpro.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Blocked by Outlook

## Trouble Delivering to Outlook / Hotmail / Live?

If you're experiencing delivery issues to Microsoft-owned domains (Outlook, Hotmail, Live), it's likely due to a **temporary block on your sending domain** by Microsoft.

### How to Fix It
You’ll need to request removal directly from Microsoft.


1. Ask our support to supply the exact IP address and any error messages.
2. Visit: [https://olcsupport.office.com/](https://olcsupport.office.com/)
3. For issue, use Our domain is blocked.
4. What domain are you sending from? * Make sure this is the from domain in your campaign.
5. How would you describe your company or yourself? * Select ESP for this.
6. Outbound IP(s) or range(s) *  eg 78.153.200.172
7. Server: Dedicated
8. Make sure to specifcy your domain in the final Q.


Follow the instructions by Microsoft.