HCW Receive Connector Selection
When you create or update an Exchange hybrid configuration using the Hybrid Configuration Wizard magic things happen. That’s why it is called a Wizard.
One essential step of the Hybrid Configuration Wizard (HCW) is the configuration of the hybrid mail-flow. The hybrid mail-flow is required for both, classic and modern Exchange hybrid.
Receive Connector RemoteIPRanges Limit
Exchange Server uses Receive Connectors for providing SMTP endpoints for incoming connections. A modern Exchange Server provides a default connector on TCP port 25.
Sometimes you might have a requirement to create a new receive connector for selected incoming SMTP connections. A standard requirement is a receive connector for relaying messages to external recipients. This cannot (should not) be achieved using the default connector.
Add or Remove Remote IP Address Ranges of Receive Connectors
his script adds or removes IP addresses or IP address ranges to/from existing Receive Connectors.
Exchange Receive Connector and the Custom Permissions Group
How do you set the Receive Connector Permission Group to Custom?
Copy Exchange Server receive connector
PowerShell script to copy an Exchange 2013/2016/2019 receive connector from one Exchange Server to multiple Exchange Servers
Add remote IP address ranges to a receive connector
PowerShell script to add remote IP address ranges to a receive connector