GW 24.2 - GWIA for sending via SMTP towards and receiving via PO3 from provider


our mail-provider switched to secure smtp and secure pop3 a few years ago, which for some unrembered reason killed the old solution of connecting the GWIA to the provider.

For sending and receiving from our GW8-system on Netware we threw in an OES-server with Postfix and Fetchmail, which connects the internal GWIA to the provider.

We will now migrate to GW24.2 on Windows and question arose, if this OES-server is obsolete, because the GWIA can connect to the provider doing the user-related authentification stuff by itself?

I tried to find something in the documentation, with no real success. Maybe I am asking the wrong questions here.

Any hint on where to look it up is highly appreciated.