Commands › Exchange Online

Get-BlockedConnector

Exchange Online ExchangeOnlineManagement Get-*

View inbound connectors that have been detected as potentially compromised. Blocked connectors are prevented from sending email.

App-only limitation executed read-only 20 Oct 2026 · module v3.10.1 — A server side error has occurred because of which the operation could not be completed. Please try again after some...

Quick start script

# Get-BlockedConnector — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org

# 2. Run and inspect
Get-BlockedConnector | Format-List

# 3. Export for evidence / drift tracking
Get-BlockedConnector | Export-Clixml .\BlockedConnector-$(Get-Date -Format yyyyMMdd).xml

Syntax

Get-BlockedConnector [-ConnectorId <Guid>] [<CommonParameters>]

Parameters (1)

ParameterTypeRequiredWhat it controls
-ConnectorId Guid The ConnectorId parameter specifies the blocked connector that you want to view. The value is a GUID (for example, 159eb7c4-75d7-43e2-95fe-ced44b3e0a56).

Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.