Configuring and Maintaining Your Server 67
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 Selected. Confirm removal and click OK.
8 If you want to be sure that you and your users 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 Selected. Confirm removal and click OK.
9 Once finished with setting up the spam filter, click the Switch On icon,
and then click OK.
Now all the incoming mail will be filtered on the server side. By default, spam filter
does not delete spam mail, it only adds the "X-Spam-Flag: YES" and "X-Spam-
Status: Yes" headers to the message, and "*****SPAM*****" text string to the
beginning of Subject line of each message recognized as spam.
If you have enabled the Apply individual settings to spam filtering option, then your
users will be able to set their spam filters so as to automatically delete junk mail.
They will also be able to set up their personal black and white lists of
correspondents that will override the server settings, and teach the spam filter on a
per-mailbox basis.
If you wish to adjust spam filtering settings for a specific mailbox, proceed to the
Protecting Mailboxes From Spam section.
Setting Up Spam Protection Based on DomainKeys
To switch on spam protection based on DomainKeys:
1 Click the Server shortcut in the navigation pane.
2 Click the Mail icon in the Services group.
3 Under the DomainKeys spam protection group, select the following options:
