• Open Exchange Management Console
• Expand Organization Configuration
• Right-click Hub Transport and select New Send Connector:

The first step of the New SMTP Send Connector wizard asks you enter a Name and Select the intended use for this Send connector. Enter a friendly name for the connector, for example ‘Esendex Connector’ and select Internet for the intended use.

• Click Next
• Click Add to add an Address Space and enter esendex.net in the Domain field.

• Click OK
• Click Next
• Under Network Settings select Route mail through the following smart hosts
• Click Add to add a smart host
• Select Fully qualified domain name (FQDN) and enter ems.esendex.net.

• Click OK
• Click Next
• Configure smart host authentication by selecting Basic Authentication
• Enter your Esendex username in the following format:
• <Account Reference>\<Username>
• Enter your API password.

• Click Next
• Select the Source Server
• Click Next
• Click New
• Click Finish to complete the SMTP Send Connector Wizard.