Backup/migration of subscription fails with error:
Error: domain "domain.tld" Unable to dump IP addresses for mail service Error: Value cannot be null. Parameter name: value
IpAddress does not set properly in
Change IP address of subscription to another available IP address and back via
Subscriptions > domain.tld > General > Change hosting settings > IP address.
Otherwise you can use
subscription.exe utility if you have only one available IP address:
"%plesk_bin%\subscription.exe" -u domain.tld -ip 188.8.131.52 SUCCESS: Update of domain 'domain.tld' completed.