The last 48 hour graph has data aggregated into 1 hour resolutions, with major points every 4 hours. All the graphs have the latest (current) data on the right hand side, data moves in the direction of the red arrow.
As far as accounting for the numbers, remember this is all the messages processed by the mta. This includes delivered mail as well as bounces. zmdailyreport will give you an idea of where messages are being delivered as well as counts. For instance for the server which the graph was provided processes 40-50k messages per day but after bounces and spam filtering only 6-8k of those messages are delivered into the message store.
The amavis msg count is more accurate picture of what is being delivered. |