This article applies to:

• Trustwave MailMarshal (SEG)

Question:

Procedure:

As an SMTP gateway, MailMarshal SMTP sends and receives email via the default SMTP port of 25. Sometimes you may need to change the default port that MailMarshal either listens for, or sends SMTP traffic on. You may for example already have a device listening on port 25 on the machine where you are installing MailMarshal.

Receiver

SEG supports multiple Receiver bindings for each node. To change the Receiver ports:

1. For MailMarshal (SEG) 10.X, in the Management Interface go to Mail Servers.
2. For SEG 8.X and below, in the Configurator see MailMarshal Configurator | Server and Array Configuration node
3. In the detailed server list, double click on the server that you want to set the Port number for.
4. Click the Advanced tab.
5. In the Receiver binding frame you can add multiple entries. Click New or Edit to change an entry.
6. For each IP address and port, you can limit the percentage of Receiver threads that will be used. This option allows you to throttle some connections in order to ensure good performance on other connections. See Help for details of the fields.
   
   

Sender

To change the default Sender Port:

Warning: Using the Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Trustwave cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Make sure that you backup your Registry prior to making any changes.

1. In MailMarshal (SEG) 10.X, use Advanced Settings in the Management Interface (see article Q10832).
   • Add a new INT value named Sender.SenderSMTPPort.
2. In SEG 8.X and below, open the Registry Editor on the Array Manager. Within the base registry key, navigate to \Default\Sender
   • In version 8.0: HKEY_LOCAL_MACHINE\SOFTWARE\Trustwave\Secure Email Gateway\Default\Sender
   • For information about the registry location for each version, see article Q10832.
   • Add a new DWORD value named SenderSMTPPort.
3. Set the value to the required port. Use Decimal numbers to avoid confusion.  
4. Save your registry settings or configuration settings.
5. Commit the configuration changes and restart the MailMarshal Sender service on each node.

This article was previously published as:

NETIQKB29247

Marshal KB158