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Exchange Server Toolbox:
SpamAssassin in a Box:
SpamAssassin for Windows:
The integrated SpamAssassin automatically uses RBL 's.You can see this by having a look at the mail header of a spam mail scanned for spam:
* 0.9 RCVD_IN_PBL RBL: Received via a relay in Spamhaus PBL
* -2.0 AWL AWL: From: address is inthe auto white-list
You can add email addresses and domains to your blacklist or whitelist by navigation to Spam | Black-/Whitelist. Add known spam domains to the blacklist or trusted domains to the whitelist for a better spam detection. Because of spoofing, it is not advised to add your own email addresses to the whitelist.
If a spam sender is on the whitelist the spam report will contain the line
-100 USER_IN_WHITELIST DEPRECATED
and the spam score will be around -100. You can find the spam score in the email header under x-spam-report.
Blacklist for words
You can add rules for emails with specific words by using the conditions "Mail contains text" and/or "Subject contains text". You can choose between different actions for these emails:
In the Incoming (receive) rules you can choose the action Refuse mail. The email will be refused and the sender will be notified. You can also choose Do not deliver mail which will result in the email being discarded.
In the Incoming (accepted) rules you can also choose Do not deliver mail. Alternatively, you can choose Add text to the message subject to mark the email as spam.
You can learn about the differences between Incoming (receive) and (accepted) in our Knowledge Base: JAM Software - FAQs & Knowledge Base (jam-software.com)
User defined Rules
You can also navigate to Spam | Custom Config to create custom SpamAssassin rules instead if you prefer adding to the spam score rather than always marking these emails as spam. Refer to this website to see how to create custom rules: https://cwiki.apache.org/confluence/display/SPAMASSASSIN/WritingRules
If you receive an unusual amount of spam emails, please check the email header and review the x-spam-report entry. If this entry contains
URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was * blocked. See * http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block * for more information. *
then please follow the directions on this website or in our Knowledge Base: JAM Software - FAQs & Knowledge Base (jam-software.com) This step noticeably improves the spam detection rate.
Change existing SpamAssassin rules
If you want to change the spam score of existing SpamAssassin rules you can follow the directions on this website: https://cwiki.apache.org/confluence/display/SPAMASSASSIN/AdjustRuleScore
For this you can also use the Exchange Server Toolbox Custom Config Editor. Adding the changed rule into Custom Config Editor will overwrite the existing rule.