Like exim on Linux or any other mailserver, ‘MailEnable’ in Windows can also run on two ports. In order to enable it follow the given steps:
=> Connect to the server via ‘Remote Desktop’.
=> Run “MailEnable Administrator’ that can be found in ‘Start’ menu.
=> Now collapse the ‘MailEnable Management’ then ‘Servers’ then ‘localhost’ and then ‘Connectors’ node.
=> Under the Connectors you will find a node ‘SMTP’.
=> Click right on ‘SMTP’ and then click on “Properties”. A ‘SMTP Properties’ dialog box will open.
=> Now go to ‘Inbound’ tab.
=> Check the ‘Also listen on alternate port’ check-box.
=> A text field will be enabled and here you can mention the required port say 26.
=> Click on ‘OK’ button.
=> Now restart the SMTP by clicking right on it and choosing ‘Stop’ and then ‘Start’ option.
=> Close the ‘MailEnable Administrator’ by saving the changes.