10. Spam

Suppress the spam mail by message rules and reverse DNS. This function is only for administrator.
Select "Spam" from left tree.


Virus Scan Enter absolute path of application to check for viruses.

e.g.
Application Name Absolute Path
NOD32 Antivirus v4.0 C:\Program Files\ESET\ESET NOD32 Antivirus\ecls.exe
NOD32 Antivirus v4.0 Server C:\Program Files\ESET\ESET NOD32 Antivirus\ecls.exe
Kaspersky Anti-Virus 6.0 C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.com
Kaspersky Anti-Virus 2009 C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 8.0\avp.com
Other is also available by definition, but do not correspond to all.
DKIM Select whether to sender authentication by using electronic signature.
DKIM is a method to signed with private key and verify with the public key.
Not support DKIM-ADSP.
If signature is not correct, refuse to receive mail at the protocol level.


<Create public key record and private key>
1. Double-click <installation directory>/DKIMTool.jar, and then start DKIMTool. (If not work, Double-click DKIMTool.bat)
2. Enter selector and domain.


Selector Enter a string of any.
It is "vanilla" in Creamsoft.
Domain Enter domain name to enable DKIM.
Test mode Select if create a public key record in test mode.
If test mode, Receive mail always.

3. Click [Create] button, and create a public key and private key.
Enter selector and private key to column of target domain.
Set public key record to DNS server.
e.g.vanilla._domainkey.creamsoft.co.jp. IN TXT "v=DKIM1; k=rsa; t=y; p=PublicKey"
Greeting Enter seconds to delay in initial response to client.
If response of the server is slow, spammer occasionally tries sending to server with invalid protocol. Refuse to receive at such a case.
DNS Reverse Lookup If FQDN and IP address is not registered in DNS properly, refuse to receive.
Message Rule
Header Enter header to be target of filtering.
(No case sensitive.)
Keyword Enter keyword to be target of filtering.
(No case sensitive.)
Conditions Select conditions of header and keyword.
Action Select action when matches the conditions.
Priority Evaluate from the top, and ends when matches the condition.
Priority:Message Rule > DNS Reverse Lookup > Virus Scan > DKIM
In general, if use DKIM, DNS Reverse lookup, message rule is used as a whitelist.

Example of Message Rule 1

Header Keyword Conditions Action
1. X-Mailer Not exist header Deny
2. Content-Type jp Not contain keyword Deny

Example of Message Rule 2

Header Keyword Conditions Action
1. Message-ID Not exist header Deny
2. From .jp Not contain keyword Deny
3. Content-Type multipart Contain keyword Deny
4. Content-Type jp Not countain keyword Deny


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