F-Secure Internet Gatekeeper for Linux/Administrator’s Guide
37
Quarantine
Quarantine(keep)
(quarantine)
Quarantines viruses. The viruses are quarantined in the directory that you can set in
Quarantine directory
under “Common settings”. The viruses are stored in mailbox
format.
Specify this setting only if sufficient disk space is available.
Edit the virus detection message
Detection message
Edits the message to be shown when a virus is detected when a file is being sent.
The text up to the first blank line contains the header.
Enter the message (including the Subject) by using the UTF-8 character set. The
maximum length of the message is 9000 bytes.
For information on variables and options, see “
Detection Notification Templates
”, 67.
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If you edit the message from the command line, you need to restart the service
afterwards.
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If you edit the virus detection message by using the web console, the
following file is updated: /opt/f-secure/fsigk/conf/template_smtp.txt.
Spam filtering
Do SPAM Check
(spam_check)
Enables or disables spam filtering. Specify the spam detection settings in
Spam filtering
method
under “Common settings”. "X-Spam-Status:" is added to the header if spam is
detected.
If you speficy RBL or SURBL as the spam filtering method, a delay of up to several hundred
milliseconds occurs while waiting for a response from the RBL or SURBL server.
Because the objective is to block incoming spam, enable the
Hosts and networks within
LAN
setting. It excludes outgoing e-mails from hosts on the LAN from spam checking.
If you enable both virus and spam scanning, the virus scan result is handled first.
Log and notify
Pass
(spam_action=pass)
Allows the spam to pass. If an e-mail is classified as spam, "X-Spam-Status:" is added to
the header. You can use the sorting function on the client to classify e-mail, in which the
value of "X-Spam-Status:" starts with "Yes" as spam. The spam detection is recorded in
the log and the administrator is notified.
Modify the message subject
Change subject
(spam_action=change_subject, spam_change_subject_prefix)
Modifies the Subject of an e-mail that is classifed as spam. If you specify a character
string, it is prefixed to the Subject. The maximum number of characters is 99.
We recommend that you specify the text string in English. Although you can specify other
languages as well, the text is encoded as UTF-8. Accordingly, if the subject of the
incoming e-mail is encoded by using some other character set, the text may not be
shown correctly in Outlook and other e-mail clients.
Delete
Delete
(spam_action=blackhole)
Deletes spam e-mail. To avoid deleting e-mails that are incorrectly classified as spam, do
not delete the e-mails at the gateway. Instead, sort the e-mail at the e-mail client (mailer).