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## Setting Up Spam Filter

To switch on spam filtering:

1. On your Home page, click Spam Filter.
2. Configure the following settings as desired:
   - Switch on SpamAssassin spam filtering. Select this check box to switch on the spam filter.
   - The score that a message must receive to qualify as spam. This setting adjusts spam filter sensitivity. SpamAssassin performs a number of different tests on contents and subject line of each message. As a result, each message scores a number of points. The higher the number, the more likely a message is spam. For example, a message containing the text string "BUY VIAGRA AT LOW PRICE!!!" in Subject line and message body scores 8.3 points. By default, the filter sensitivity is set so that all messages that score 7 or more points are classified as spam.

     If you receive lots of spam messages with the current setting, to make filter more sensitive, try setting a lesser value in the The score that a message must receive to qualify as spam box; for example, 6.

     If you are missing your e-mails because your spam filter thinks they are junk, try reducing filter sensitivity by setting a higher value in the The score that a message must receive to qualify as spam box.

     Note: To further improve spam filter accuracy, you may want to train your spam filter on e-mail messages you receive (see the instructions on improving accuracy of spam detection in the following section).

   - What to do with spam mail. If you are sure that your spam filter is accurate, you may want to set the filter to automatically delete all incoming messages recognized as spam. To do this, select the Delete option. If you wish to filter mail with the software on your local computer, select the Mark as spam and store in mailbox option, and then specify how spam filter should mark the messages recognized as spam. "X-Spam-Flag: YES" and "X-Spam-Status: Yes" headers are added to the message source by default, and if you want, the spam filter will also include a specific text string to the beginning of Subject line. To include a desired combination of symbols or words to the message subject, type it into the Add the following text to the beginning of subject of each message recognized as spam box. If you do not want the spam filter to modify message subject, leave this box blank. If you want to include into the subject line the number of points that messages score, type _SCORE_ in this box.
3. If you do not want to receive e-mail from specific domains or individual senders, click the Black List tab, and then add the respective entries to the spam filter's black list:
   - To add entries to the black list, click Add Addresses. If you have a list of entries stored in a file, click Browse to specify it, and then click OK. Otherwise, select the From List option, and type the e-mail addresses into the E-mail addresses box. Place each address in one row, or separate addresses with a coma, a colon, or a white space. You can use an asterisk (*) as a substitute for a number of letters, and question mark (?) as a substitute for a single letter. For example: address@spammers.net, user?@spammers.net, *@spammers.net. Specifying *@spammers.net will block the entire mail domain spammers.net. To save the entries you added, click OK, then confirm adding, and click OK again.
   - To remove entries from the black list, under the Black List tab, select the entries and click Remove. Confirm removal and click OK.
   - To remove entries that were predefined by your provider, select an entry and click Switch Off. The entry will not be removed from the list, but the spam filter will skip it and this rule will be ignored. When you decide to use this entry again, select it and click Switch On.
4. If you want to be sure that you will not miss e-mail from specific senders, click the White List tab, and then add e-mail addresses or entire domains to the spam filter's white list:
   - To add entries to the white list, click Add Addresses. If you have a list of entries stored in a file, click Browse to specify it, and then click OK. Otherwise, select the From List option, and type the e-mail addresses into the E-mail addresses box. Place each address in one row, or separate addresses with a coma, a colon, or a white space. You can use an asterisk (*) as a substitute for a number of letters, and question mark (?) as a substitute for a single letter. For example: address@mycompany.com, user?@mycompany.com, *@mycompany.com. Specifying *@mycompany.com will add to the white list all e-mail addresses that are under the mycompany.com mail domain. To save the entries you added, click OK, then confirm adding, and click OK again.
   - To remove entries from the white list, under the White List tab, select the entries and click Remove. Confirm removal and click OK.
   - To remove entries that were predefined by your provider, select an entry and click Switch Off. The entry will not be removed from the list, but the spam filter will skip it and this rule will be ignored. When you decide to use this entry again, select it and click Switch On.
5. Once finished with setting up the spam filter, click OK.