A mail filtering system on the grad

	A filter system is now setup on the grad for you to try to filter and 
	reject the spam mails.

	A spam mail would be more effectively identified by the filter system 
	if you continue to feed the data into the system.  The spammers change 
	their tactics and the structure of the mails to avoid from being detected 
	by the system.  It is necessary	to continue to feed the data into your mail 
	database, so that the filtering of the mails would work efficiently.

(1) Save the files:

    Save the spam mails into a file.  If you use pine, type s and save it to a folder 
	 called spam.

(2) auto-learn:

    issue the command (grad only, not grad0*):

	  sa-learn --spam --showdots --mbox ~/mail/spam   (for pine),  or
	  sa-learn --spam --showdots --mbox your-spam-mail-file

    If the spam files are in a sub-directory,  
	  sa-learn --spam --showdots --mbox --dir your-subdir-name

                                                                         
    For the mails you want to keep, the command  is,
									        
           sa-learn --ham --showdots --mbox good-mail-file

(3) Errors:
    
    If you have misidentified a mail and tag it as "spam",  feed the system with the
    mail, sa-learn --ham --mbox good-mail

(4) Auto Diversion and Rejection of spam mails:

	 The spam mails identified by the system can be sent to a folder automatically.

	 (a) create a file, called ~/.procmailrc in your home area with the following 
	     lines,

	     :0 H
	     * ^X-Spam-Status:.*Yes
	     /homes/glab_vol1/your_username/mail/spam

	 (b) if you want to reject the mail with an error code, but also want to keep 
	     the spam mail, then replace the third line with,
	     {
	     EXITCODE=67
	     :0:
	     /homes/glab_vol1/your_username/mail/spam
	     }


(5) Spam mail database:

	 To speed up and facilitate the filtering,  I have setup a spam mail area
	 for everyone to deposit their spam mail files.  It is,

	     /misc/scr/spam/1206  /misc/scr/spam/0107  (for January 2007),  etc.

	 Everyone is encouraged to deposit the spam mails they have found.

		  cp ~/mail/spam /misc/scr/spam/1206/your_username

          Please set your spam mail file to world readable, so that other may use it,

		  i.e.  chmod og+r /misc/scr/spam/1206/your_username
		  
	  To use it,

		  sa-learn --spam --showdots --mbox /misc/scr/spam/1206/root  (e.g.)

	  To use all spam files in the area,  
 
		  sa-learn --spam --showdots --mbox --dir /misc/scr/spam/1206



Note: sa-learn is currently available only on grad, not grad0*.


Note: all campus mails + BNL + FNAL mails are not filtered by the system.

Help files:  http://grad.physics.sunysb.edu/