Chapter 33 Anti-Spam

 

Table 180

Anti-X > Anti-Spam > Black/White List > Black List (or White List) > Add

 

LABEL

 

DESCRIPTION

 

OK

 

Click OK to save your changes.

 

 

 

 

 

Cancel

 

Click Cancel to exit this screen without saving your changes.

 

 

 

 

33.4.2 Regular Expressions in Black or White List Entries

The following applies for a black or white list entry based on an e-mail subject, e-mail address, or e-mail header value.

•Use a question mark (?) to let a single character vary. For example, use “a?c” (without the quotation marks) to specify abc, acc and so on.

•You can also use a wildcard (*). For example, if you configure *def.com, any e-mail address that ends in def.com matches. So “mail.def.com” matches.

•The wildcard can be anywhere in the text string and you can use more than one wildcard. You cannot use two wildcards side by side, there must be other characters between them.

•The ZyWALL checks the first header with the name you specified in the entry. So if the e- mail has more than one “Received” header, the ZyWALL checks the first one.

33.5The Anti-Spam White List Screen

Click Anti-X > Anti-Spam > Black/White List and then the White List tab to display the Anti-Spam White List screen.

Configure the white list to identify legitimate e-mail. You can create white list entries based on the sender’s or relay’s IP address or e-mail address. You can also create entries that check for particular header fields and values or specific subject text.

Figure 426 Anti-X > Anti-Spam > Black/White List > White List

The following table describes the labels in this screen.

Table 181 Anti-X > Anti-Spam > Black/White List > White List

LABEL

DESCRIPTION

General Settings

 

 

 

Enable White List

Select this check box to have the ZyWALL forward e-mail that matches (an

Checking

active) white list entry without doing any more anti-spam checking on that

 

individual e-mail.

 

 

 

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ZyWALL USG 100/200 Series User’s Guide