since a recent migration, which failed and we had to re-activate the old server, my MTA web monitor shows me the wrong IP address on the MTP link to the postoffice

The MTA Log has this entry, also with the wrong IP address

gwpo-ipS1: Unable to open connection 0x8925. Address = [wrong IP Address], Port = 7101

The objects in Console one all have the correct IP address and the link configuration in Console one also show the wrong IP configuration.

Where else can I make sure that my link from MTA to PO uses the correct IP address?