Listen on Multiple SMTP Ports Problem

My server has multiple applications running which include lotus domino server but also sendmail and a spam server.I have multiple IP Addresses availabe both public and private.

How do I tell Domino to listen on multiple smtp ports.

eg 1 external and 1 internal IP address.

sendmail works ok set for 1 external and 1 internal

spam server works ok set for 1 external and 1 internal.

The only configuration I can get is Domino to use

1 external or 1 internal but not both. The internet site documents should be the correct way to set this but nothing works other than setting SMTPNotesPort=SMTP where SMTP points to an ip address. but adding

SMTPNotesPort=SMTP,SMTP2 hoping this would use both ports but this fails.

What next ???

Subject: Listen on Multiple SMTP Ports Problem.

SMTP can only listen on 1 per IPaddress/port combination per server. Notes ini info you are describing is for telling Dominio which IP/port to use if there is more than one candidate. You configure which IP port SMTP is using for in and outbound in the server document

Suggest setting up Domino on one IP address, perhaps using the default ports. Then configure your other software to route mail downstream to it. For outbound from the Domino server you can use the relay server field in the config document if all outbound mail needs to pass through some other software first.