A growing amount of spam and email viruses has resulted in DiData shifting the NSW Department of Health onto hosted anti-spam and antivirus products from MessageLabs.
DiData's NSW security practice manager, Paul Sproule, said the integrator had been asked to propose a solution to the department's email issues.
"The department was experiencing very high volumes of spam, more so than viruses," he said. "It was becoming quite a problem so we suggested a couple of solutions, including MessageLabs."
The bulk of the Department's day-to-day email is to eight Area Health Services, the Ambulance Service of NSW and a number of other statewide health services.
Sproule said the other solution suggested by DiData wasn't a hosted solution and had more in common with the problematic self-managed system already in use at the Department.
Once the new solution was agreed upon, a mixed team of DiData, MessageLabs and NSW Department of Health personnel was assembled. The products were run in a favourable trial.
The solution was then formally employed by the Department. Several months on, it reports an ongoing and significant drop in spam.
According to NSW Department of Health head of IT infrastructure, John Brown, spam has dropped to about 0.02 per cent of an average 600,000 emails a month.