After upgrading the Proxmox server to kernel 2.6.32 (V 1.6) I am getting from the Proxmox Mailgateway VMs the following error from cron jobs hourly:
/etc/cron.hourly/proxmox:
eth0: error fetching interface information: Device not found
/etc/cron.hourly/proxmox:
eth0: error fetching interface information: Device not found