IT Services



Mail Relay Statistics


Contents

These graphs show the rates at which certain events are occurring in the mail relay service. The stats are gathered for use by the Networks Team and are made publically viewable for interest only. This is not an official service and may break at any time. However, please feel free to let us know if it has broken at networks@oucs.ox.ac.uk.



1. Overall

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/overall-hour.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/overall-day.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/overall-month.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/overall-year.png []

Accepted
A message which is accepted for onward relay.
Delivered
Measures deliveries to recipients. A single message may have more than one recipient.
Rejected
A message which is rejected at SMTP time. You can also see a breakdown of rejection types.


2. Sources

These graphs show the rate of messages being accepted from inside and outside the University

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/sources-hour.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/sources-day.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/sources-month.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/sources-year.png []



3. Junk

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/junk-hour.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/junk-day.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/junk-month.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/junk-year.png []

Ham
A message which scores fewer than 5 SpamAssassin points.
Spam
A message which scores 5 or more SpamAssassin points.
Malware
A message which matches one of our ClamAV rules. There is also a breakdown of malware.


4. Malware

Only the most popular malware for each time period is plotted. Signatures from ClamAV, MSRBL, Sanesecurity are used.

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/virus-hour.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/virus-day.png []



5. Rejections

Only the most popular rejection types for each time period are graphed.

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/error-hour.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/error-day.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/error-month.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/error-year.png []



6. Nodes

These graphs show the delivery rates for each node in the mail relay cluster.

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/nodes-hour.png []

Figure http://comms.oucs.ox.ac.uk/images/stats/relay/nodes-day.png []