Checkmk Werk 15914: active_checks_mailbox: Fix rule transform when updating from 2.1.0p25 or lower

ID: 15914 Title: active_checks_mailbox: Fix rule transform when updating from 2.1.0p25 or lower Component: Checks & agents Level: 1 Class: Bug fix Version: 2.1.0p34 If the rule for any mailbox related active check was configured without defining the 'server' option and an update to a higher version was attempted, it caused a rule transform error. This caused the update to fail. The error looks similar to this: C+: client_id, client_secret, tenant_id = auth_data ValueError: not enough values to unpack (expected 3, got 2) C-: This has now been fixed and the transformation of the rule will not cause any problems while updating.