Icewarp behind whitelist, cannot update

Hello,

We are running a couple of IceWarps on premises and after deciding to put our mail services non-public (whitelisted SMTP) we are no longer able to update. Seems your update process tries to contact our server (which it cannot due to whitelist) and since it can't it's not offering the update.

We would like to update without this check and if that's impossible we would like to receive a list of IPs you guys are doing the checks from so we can add IceWarp to our whitelist.

Please advice, thanks!