Changes to Medical Center Anti-Spam/Quarantine System
If you use the Medical Centers Anti-Spam/Quarantine system you need
to know about a major change that was made on April 1, 2006. You might
have noticed that the number of messages that were quarantined for you
dropped quite a bit.
Because the Quarantine system was overloaded and running out of disk
space, a new feature was added that discards any email which has a spam
score of 99% or greater. After May 1, this default threshhold will be
lowered to 90% or greater. What this means is that any email message which
Duke's main incoming email system determines to have a 99%/90% certainty
of being spam gets discarded before it even reaches the Medical Center's
quarantine system.
Now there are two separate actions that the system can take on spam -
DISCARD and QUARANTINE. Therefore, a new option has been added to allow
you to set the DISCARD threshhold to whatever you want it to be. You can
set this and other options at:
DUHS E-mail Quarantine System
Be sure to read the FAQ at:
DUHS Anti-Spam System FAQ
If you are concerned that you might lose a valuable message,
consider this. The Quarantine system has been running for just over two
years. Last year it handled almost 180,000,000 messages. 60% (about
108,000,000) were tagged as spam and quarantined. Many of the quarantined
messages had spam scores of much less than the 99% that now triggers
discard. Of that 60% only 0.02% were released by the recipient. The point
being that, even including threshholds much lower than the DISCARD
threshhold of 99%, the quarantine system has been correct in 99.98% of the
messages it handled.
Release Date: April 12, 2006
