Chapter 23 Anti-Spam
ZyWALL (ZLD) CLI Reference Guide
219
23.2.3.1 White and Black Lists Example
This example shows how to configure and enable a white list entries for e-mails with
“testwhite” in the subject, e-mails from whitelist@ourcompany.com, e-mails with the Date
header set to 2007, and e-mails from (or forwarded by) IP address 192.168.1.0 with subnet
255.255.255.0.
23.2.3.2 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.
23.2.4 DNSBL Anti-Spam Commands
This section describes the commands for checking the sender and relay IP addresses in e-mail
headers against DNS (Domain Name Service)-based spam Black Lists (DNSBLs). You must
use the
configure terminal
command to enter the configuration mode before you can use
these commands.
show anti-spam black-list [status]
Displays the current anti-spam black list. Use
status
to
show the activation status only.
show anti-spam tag black-list
Show the configured anti-spam black list tag.
Table 118
Commands for Anti-spam White and Black Lists (continued)
COMMAND
DESCRIPTION
Router(config)# anti-spam white-list subject testwhite activate
Router(config)# anti-spam white-list e-mail whitelist@ourcompany.com
activate
Router(config)# anti-spam white-list mail-header Date 2007 activate
Router(config)# anti-spam white-list ip-address 192.168.1.0 255.255.255.0
activate
Router(config)# show anti-spam white-list
No. Type Status
Content
==========================================================================
1 subject yes
testwhite
2 e-mail yes
whitelist@ourcompany.com
3 mail-header yes
Date : 2007
4 ip-address yes
192.168.1.0 / 255.255.255.0
Summary of Contents for ZyWall
Page 2: ......
Page 6: ...Document Conventions ZyWALL ZLD CLI Reference Guide 6 ...
Page 10: ...10 ...
Page 26: ...Chapter 1 Command Line Interface ZyWALL ZLD CLI Reference Guide 26 ...
Page 46: ...46 ...
Page 84: ...Chapter 6 Interfaces ZyWALL ZLD CLI Reference Guide 84 ...
Page 98: ...Chapter 8 Route ZyWALL ZLD CLI Reference Guide 98 ...
Page 106: ...Chapter 10 Zones ZyWALL ZLD CLI Reference Guide 106 ...
Page 110: ...Chapter 11 DDNS ZyWALL ZLD CLI Reference Guide 110 ...
Page 116: ...Chapter 12 Virtual Servers ZyWALL ZLD CLI Reference Guide 116 ...
Page 120: ...Chapter 13 HTTP Redirect ZyWALL ZLD CLI Reference Guide 120 ...
Page 124: ...Chapter 14 ALG ZyWALL ZLD CLI Reference Guide 124 ...
Page 125: ...125 PART III Firewall Firewall 127 ...
Page 126: ...126 ...
Page 134: ...Chapter 15 Firewall ZyWALL ZLD CLI Reference Guide 134 ...
Page 135: ...135 PART IV VPN IPSec VPN 137 SSL VPN 147 L2TP VPN 153 ...
Page 136: ...136 ...
Page 146: ...Chapter 16 IPSec VPN ZyWALL ZLD CLI Reference Guide 146 ...
Page 152: ...Chapter 17 SSL VPN ZyWALL ZLD CLI Reference Guide 152 ...
Page 160: ...Chapter 18 L2TP VPN ZyWALL ZLD CLI Reference Guide 160 ...
Page 161: ...161 PART V Application Patrol Application Patrol 163 ...
Page 162: ...162 ...
Page 174: ...Chapter 19 Application Patrol ZyWALL ZLD CLI Reference Guide 174 ...
Page 175: ...175 PART VI Anti X Anti Virus 177 IDP Commands 185 Content Filtering 203 Anti Spam 215 ...
Page 176: ...176 ...
Page 202: ...Chapter 21 IDP Commands ZyWALL ZLD CLI Reference Guide 202 ...
Page 214: ...Chapter 22 Content Filtering ZyWALL ZLD CLI Reference Guide 214 ...
Page 224: ...Chapter 23 Anti Spam ZyWALL ZLD CLI Reference Guide 224 ...
Page 225: ...225 PART VII Device HA Device HA 227 ...
Page 226: ...226 ...
Page 236: ...236 ...
Page 248: ...Chapter 26 Addresses ZyWALL ZLD CLI Reference Guide 248 ...
Page 252: ...Chapter 27 Services ZyWALL ZLD CLI Reference Guide 252 ...
Page 262: ...Chapter 29 AAA Server ZyWALL ZLD CLI Reference Guide 262 ...
Page 266: ...Chapter 30 Authentication Objects ZyWALL ZLD CLI Reference Guide 266 ...
Page 272: ...Chapter 31 Certificates ZyWALL ZLD CLI Reference Guide 272 ...
Page 276: ...Chapter 32 ISP Accounts ZyWALL ZLD CLI Reference Guide 276 ...
Page 280: ...Chapter 33 SSL Application ZyWALL ZLD CLI Reference Guide 280 ...
Page 288: ...Chapter 34 Endpoint Security ZyWALL ZLD CLI Reference Guide 288 ...
Page 289: ...289 PART IX System System 291 System Remote Management 299 ...
Page 290: ...290 ...
Page 298: ...Chapter 35 System ZyWALL ZLD CLI Reference Guide 298 ...
Page 314: ...314 ...
Page 332: ...Chapter 37 File Manager ZyWALL ZLD CLI Reference Guide 332 Figure 55 Startup Complete ...
Page 344: ...Chapter 39 Reports and Reboot ZyWALL ZLD CLI Reference Guide 344 ...
Page 346: ...Chapter 40 Session Timeout ZyWALL ZLD CLI Reference Guide 346 ...
Page 348: ...Chapter 41 Diagnostics ZyWALL ZLD CLI Reference Guide 348 ...
Page 362: ...Chapter 44 Watchdog Timer ZyWALL ZLD CLI Reference Guide 362 ...
Page 363: ...363 PART XI Command List List of Commands Alphabetical 365 ...
Page 364: ...364 ...
Page 394: ...List of Commands Alphabetical ZyWALL ZLD CLI Reference Guide 394 ...