Over the last two days we have become aware of an increase in the amount of spam arriving in customers inboxes. The cause has been identified as a failure on one of our inbound gateways.

Becuase of how the system works this did not affect the delivery of mail. The fallback is to simply deliver all mail. This failure only affected one of our gateways. The other gateways continued to filter correctly. This meant the increase in spam was only small.

The problem has now been rectified and customers inboxes should again become less burdened with spam.