We have an XGS cluster and we want to use the Email protection module in MTA mode.
When entering a static route to a mailserver, the emails are normally sent over port 25.
When using the Spam protection the normal procedure for blocking non existing recipients is a callout to the server.
In Exchange this doesn't work over Port 25 bacause, even with activated Recipient Address Filtering, the filter only works on the Hub Transport connector with port 2525.
On Port 25 Exchange accepts any address from a configured domain, regardless of its existence.
Therefore the best practice is to route the incoming emails to Port 2525.
Unfortunately I cannot find any setting in SFOS 19 tha allows me to change the port.
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