Menu

Lookup
Stats
Evidence Howto
About Virbl
Why use Virbl?

	Login for AS-admins

Quick Stats

Unique hosts: 15314
Unique IPv6 hosts: 5
Entries in db: 16274
IPv6 entries in db: 7
Hosts on virbl: 49
IPv6 hosts on virbl: 0

Download

• Bind format
  
• Rbldnsd format
  
• Plain text
  

Usage

• Exim
• SpamAssassin
• Sendmail
• Postfix

Virbl usage

So how should you use Virbl? We'll try to tell you for some well-known products.

Exim

In an Exim ACL, use the following code:

# Block all connections from hosts on Virbl
deny
     message  = Connection blocked. You are on $dnslist_domain ($dnslist_text)
     dnslists = virbl.dnsbl.bit.nl

This will deny messages from any ip which is on Virbl

Spamassassin

In your local.cf (or so), use the following code:

header          RCVD_IN_VIRBL   eval:check_rbl_txt('virbl', 'virbl.dnsbl.bit.nl')
describe        RCVD_IN_VIRBL   Listed in virbl.dnsbl.bit.nl
tflags          RCVD_IN_VIRBL   net
score           RCVD_IN_VIRBL   0 3.0 0 3.0

This will give messages from any ip which is on Virbl an extra score of three points.

Sendmail

Add the following line to your sendmail.mc, rebuild your sendmail.cf and restart sendmail.

FEATURE(`enhdnsbl', `virbl.dnsbl.bit.nl', ``Mail from $&{client_addr} rejected, see http://virbl.bit.nl/'',`t')dnl

Postfix

In main.cf, add the following line:

smtpd_recipient_restrictions = reject_rbl_client virbl.dnsbl.bit.nl

This will deny messages from any ip which is on Virbl