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computing:accounts:email:spam [2010/12/01 15:57] – allancomputing:accounts:email:spam [2011/01/14 18:36] (current) – allan
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   * We do make best effort to prevent spam sent to you from being delivered   * We do make best effort to prevent spam sent to you from being delivered
   * There's not much we can do to prevent attempts to send it to you; we can't follow up and investigate individual messages.   * There's not much we can do to prevent attempts to send it to you; we can't follow up and investigate individual messages.
-  * There's a lot more information at the OIT Spam information page and at CAUCE (Coalition against Unsolicited Commercial Email) +  * There's a lot more information at the [[http://www.oit.umn.edu/security/topics/spam/|OIT Spam information page]]
  
 ===== Greylisting and blacklists ===== ===== Greylisting and blacklists =====
  
 We run the OpenBSD [[http://www.openbsd.org/cgi-bin/man.cgi?query=spamd&sektion=8|spamd]] service to prevent or delay message delivery from suspect servers. In addition, systems which attempt to send messages to nonexistent accounts or defunct physics hostnames are temporarily blacklisted.  We run the OpenBSD [[http://www.openbsd.org/cgi-bin/man.cgi?query=spamd&sektion=8|spamd]] service to prevent or delay message delivery from suspect servers. In addition, systems which attempt to send messages to nonexistent accounts or defunct physics hostnames are temporarily blacklisted. 
 +
 +You can view a list of messages which were blocked or greylisted (delayed) on your [[https://www.physics.umn.edu/resources/myphys/|MyPhys]] page. Delayed messages should normally arrive within about a half hour (although to some extent this will depend on the sending mail system), and once a message has been delivered, future messages from that source will have no delay.
  
 ===== Spam Filtering ===== ===== Spam Filtering =====
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 We also run the SpamAssassin filter on all incoming messages to our mail system. SpamAssassin simply assigns each message a "score", based on the content. We also run the SpamAssassin filter on all incoming messages to our mail system. SpamAssassin simply assigns each message a "score", based on the content.
   * Messages with a score of 5 or less are left alone   * Messages with a score of 5 or less are left alone
-  * Messages with a score between 5 and 8 have the text ****SPAM added to their subject line befrore being delivered. +  * Messages with a score between 5 and 10 have the text ****SPAM added to their subject line before being delivered. 
-  * Messages with a score over 8 are rejected (our system refuses to deliver them to you and the sender receives a bounce message). +  * Messages with a score over 10 are rejected (our system refuses to deliver them to you and the sender receives a bounce message). 
  
 ==== Custom Filters ==== ==== Custom Filters ====
computing/accounts/email/spam.1291240639.txt.gz · Last modified: 2010/12/01 15:57 (external edit)

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