Google report the incident resolved and we're seeing still seeing email flowing.

We are seeing some emails arriving now although the service is still down according to Google.

Google have now acknowledged the issue on https://www.google.com/appsstatus#hl=en&v=status

Google appear to have a large outage which they have yet to acknowledge. We use Google Apps for our email and thus are presently not receiving emails into our ticketing system. If you have urgent requirements, please telephone us. No Simwood services are otherwise affected.