Multi-Tech Systems RF660 - Manual (Page 79)

Chapter 6 – RouteFinder Software
Multi-Tech Systems, Inc. RouteFinderVPN RF760/660/600VPN User Guide (PN S000323D) 79
Proxy > POP3 Proxy > POP3 SPAM Filtering
Recipient White List
Enter the recipient email IDs that will not be checked for SPAM. For example, if all the emails from the
specific domain cde.com are not to be checked for SPAM, then the entry should be @cde.com.
Once you enter the ID and click the Add button, the ID displays in a list below the entry field. You may
enter more than one email ID, and each ID can be deleted.
Authentic Networks
Select the network from which a user may retrieve unfiltered email. In other words, the email on this
network is not checked for SPAM. Select from Any, LAN, WANInterface, DMZ.
Once you select a network and click Add, the network displays in a box below this entry field. You may
select more than one network, and a network can be deleted whenever you want to make a change.
Blocked Networks
If the user tries to retrieve email from the network entered in the list, then that connection of retrieving
emails is rejected.
Check for NULL Sender
If this option is enabled, email with an empty sender address is marked as SPAM.
Bad Pattern in Sender Address
The sender email address will be checked to see if matches any of the patterns added the list. If there is a
match, then the email will be marked as SPAM.
Control Character: Asterisk (*) is a general pattern-matching character. For example, if the entry is
xyz*@ abc.com, then all email from the domain abc.com with user names starting with
xyz will be marked as SPAM.
Message Filtering
If you check Message Filtering, two additional prompts display. File attachments and specified expressions will
be filtered.
Attachment Filtering
Enter the file extensions to be filtered. Email will be searched for these extensions. If there is a match, the
email will be quarantined so that the administrator can decide whether to forward or delete the email.
Note About Extensions: Examples of extensions are bmp, exe, gif. Also, double extensions such as
tar.gz cannot be used. The wild card ‘*’ cannot be used to filter all attachments.
Expression
The email message and body will be searched for the expressions added here. If the expression is "as is"
is to be searched for in the email, it is added with quotation marks. If the entry is to be used as a regular
expression, the entry should be enclosed in < >.