> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blinkops.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set Transport Rule

> Modify an existing transport rule (mail flow rule) in your Exchange Online organization.

Installed version: 3.5.0

## Parameters[​](#parameters "Direct link to Parameters")

| Parameter                | Description                                                                                                                                                                              |
| ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Rule Name                | Name of the existing transport rule to modify.                                                                                                                                           |
| Sender Domain Exceptions | Comma separated list of domains that will become an exception to this transport rule. Incoming mail from this domain will not be affected by the rule. Example: blinkops.com,example.com |
| Sender Domains           | Comma separated list of domains that will be affected by this transport rule. Example: blinkops.com,example.com                                                                          |

## Workflow Library Example[​](workflow-library-example "Direct link to Workflow Library Example")

[Set Transport Rule with Exchange Online and Send Results Via Slack](https://library.blinkops.com/workflows/set-transport-rule-with-exchange-online-and-send-results-via-email)

<div className="iframe-wrapper">
  <div className="iframe-media">
    <img src="https://mintcdn.com/blinkops-2/ojHYuDeYX5FWuN8a/img/Icons/play-box.svg?fit=max&auto=format&n=ojHYuDeYX5FWuN8a&q=85&s=b8af968e71438a9499c3223c9bd29fb2" alt="Automation Library" width="16" height="16" data-path="img/Icons/play-box.svg" />

    Preview this Automation on desktop
  </div>

  <iframe className="iframe" src="https://library.blinkops.com/workflows/set-transport-rule-with-exchange-online-and-send-results-via-email" />
</div>