The Site Delivery Time Thresholds are set to 5 seconds how do I change them to 60 seconds or more.
1. in the MessageStats console , expand Exchange organizations then right click on your Organization name and select properties.
2. Select the Delivery Time Threshold tab and click on the site you wish to change and select Edit
3. Then you can change the delivery time thresholds from 5 seconds to 60 seconds in the Delivery Time Threshold Between Sites and the Delivery time Threshold Within Sites and click OK.