We are running on premise Exchange 2007.
We are receiving increased numbers of spam emails - one of which has resulted in a virus causing damage to network data this week.
I am aware of the inbuilt anti spam features in Exchange 2007 and desktop solutions such as Cloudmark etc. However, I would welcome any advise that you experts could provide as to a suitable and effective way of eliminating as much as possible any spam email received.
Many thanks in advance for any suggestions