Chapter 36 Anti-Spam
ZyWALL / USG (ZLD) CLI Reference Guide
253
36.2.3.1 DNSBL Example
This example:
• Sets the ZyWALL / USG to use “DNSBL-example.com” as a DNSBL.
• Turns DNSBL checking on.
• Sets the ZyWALL / USG to forward POP3 mail with a tag if the queries to the DNSBL domains
time out.
• Sets the ZyWALL / USG to check up to 4 sender and relay server IP addresses in e-mail headers
against the DNSBL.
• Sets the ZyWALL / USG to start DNSBL checking from the first IP address in the mail header.
• Sets the DNSBL tag to “DNSBL”.
• Sets the DNSBL timeout tag to “DNSBL-timeout”.
show anti-spam dnsbl domain Displays the ZyWALL / USG’s configured anti-spam DNSBL domain
entries.
show anti-spam dnsbl max-query-ip Displays how many sender and relay server IP addresses in the mail
header anti-spam checks against the DNSBL.
show anti-spam dnsbl ip-check-order Displays the order in which anti-spam checks e-mail header IP addresses
against the DNSBLs.
show anti-spam dnsbl query-timeout {smtp
| pop3}
Displays how the ZyWALL / USG handles SMTP or POP3 mail if the queries
to the DNSBL domains time out.
show anti-spam tag {dnsbl | dnsbl-
timeout}
dnsbl displays the anti-spam tag for e-mails that have a sender or relay
IP address in the header that matches a blacklist maintained by a DNSBL
domain.
dnsbl-timeout displays the message or label to add to the mail subject
of e-mails that the ZyWALL / USG forwards if queries to the DNSBL
domains time out.
show anti-spam dnsbl statistics Displays anti-spam DNSBL statistics for each configured DNSBL domain.
anti-spam dnsbl statistics flush Clears the anti-spam DNSBL statistics for each configured DNSBL domain.
anti-spam dnsbl query-timeout time
[1..10]
Sets how long the ZyWALL / USG waits for a reply from the DNSBL
domains.
show anti-spam dnsbl query-timeout time Displays how long the ZyWALL / USG waits for a reply from the DNSBL
domains.
[no] anti-spam xheader dnsbl mail-header
mail-header-value
Specify the name and value for the X-Header to add to e-mails with a
sender or relay IP address in the header that matches a black list
maintained by a DNSBL domain in the ZyWALL / USG’s list
show anti-spam xheader dnsbl Display the name and value for the X-Header to add to e-mails with a
sender or relay IP address in the header that matches a black list
maintained by a DNSBL domain in the ZyWALL / USG’s list
Table 145 DNSBL Commands
COMMAND DESCRIPTION
To Next Page
Loading...
