Go to the U of M home page
School of Physics & Astronomy
School of Physics and Astronomy Wiki

User Tools

Trace: • spam
computing:accounts:email:spam

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
computing:accounts:email:spam [2008/05/29 01:19] – allancomputing:accounts:email:spam [2011/01/14 18:36] (current) – allan
Line 6: Line 6:
 {{indexmenu>:computing:accounts#1}} {{indexmenu>:computing:accounts#1}}
 </box> </box>
-====== Spam ======+====== Spam Control and Deterrence ======
  
 ===== What to do about Spam ===== ===== What to do about Spam =====
-  * There's not much we can do to prevent people from sending it to you 
   * 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 a lot more information at the OIT Spam information page and at CAUCE (Coalition against Unsolicited Commercial Email) +  * 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 [[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 =====
Line 21: Line 23:
 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. +  * 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 ====
  
-You can change settings within your account to take further action based on this score, such as move messages to a different folder, or even delete them completely.+You can change settings within your account to take further action based on the spamassassin score, such as move messages to a different folder, or even delete them completely.
  
 These settings are made within the Physics webmail system. As an example, let's say you want to filter those messages with scores with 6 or higher, so they are placed into a separate folder instead of your INBOX. These settings are made within the Physics webmail system. As an example, let's say you want to filter those messages with scores with 6 or higher, so they are placed into a separate folder instead of your INBOX.
Line 32: Line 36:
   * Under Condition change the first drop-down box which says **To: or Cc** to **X-Spam-Level**   * Under Condition change the first drop-down box which says **To: or Cc** to **X-Spam-Level**
   * In the text box after contains enter <code>******</code> (that is, 6 stars)   * In the text box after contains enter <code>******</code> (that is, 6 stars)
-  * Under Action choose **Move message into** and select a folder name as the destination. //Don't choose the global "spam" or "notspam" folders, as this is not their intended purpose - see below for more on these folders.//+  * Under Action choose **Move message into** and select a folder name as the destination.
   * Under **Additional actions**, check **STOP: If this rule matches, do not check any rules after it.**   * Under **Additional actions**, check **STOP: If this rule matches, do not check any rules after it.**
   * Click **Add New Rule**   * Click **Add New Rule**
computing/accounts/email/spam.1212041987.txt.gz · Last modified: 2008/05/29 01:19 by allan

Page Tools