Under ServerConfiguration > Change IP Address > Use dedicated address
..I mistakenly added an external IP which has now added a "Non-default shared address"
This addition is now preventing Postfix from restarting (despite commenting the IP out in the Postfix config).
How can I remove the IP/reverse my error at a system level
(Note I've deleted and restored the original Virtual Server which now runs on the correct default IP but this makes no difference to Postfix)