debug

Enables or disables debug output from the ICAP interface module. 0 or 1. 

0 

field

Specifies the prefix for the ICAP result. SAVSE result strings look like this: 

Virus-Test: False Virus-Test: True; W32.Mydoom.A@mm.enc

This option provides a way to change the Virus-Test: part of the result. Note that the “: “ is removed if an empty field value is specified.

Virus-test 

host

The name of the system where the ICAP filtering server is running 

localhost 

mode

Controls the translation of ICAP filter results to verdict information. That is, it specifies the string information returned after a message is processed. Four modes are available. See 14.5.5.1 The ICAP mode Option for further explanation

0 - Returns a verdict string (specified by the verdict option), if the message contains a virus. The MTA option spamfilterX_string_action can be used to specify what to do if a verdict string is returned. If the verdict option is empty or not set, a null verdict is returned. The MTA option spamfilterX_null_action can be used to specify what to do if a null verdict is returned and if you want to override the default action, which is to discard the message.

If the message does not contain a virus, a default string is returned. A default string is unconfigurable and always means to take no action and deliver as normal. 

1 - Return the ICAP result string if the message is found to contain a virus. If the message does not contain a virus, a default string is returned. A default string always means to take no action and deliver as normal. Below are two examples of a ICAP result string:

VIRUS TEST: FALSEVIRUS-TEST: TRUE; W32.Mydoom.A@mm.enc

2 - Return an ICAP result string unconditionally; no default or null verdict is ever returned and the verdict option is never used. This setting is intended for cases in which an action needs to be taken regardless of whether or not the message was determined to contain a virus. The addition of a header field that can subsequently be tested is an obvious application for mode 2:

spamfilterX_string_action=data:,require ["addheader"];addheader "$U"

3 - Return the ICAP result string if the message is found to contain a virus; return the verdict string specified by the verdict option if it does not. This setting is intended for cases in which one action needs to be taken if a virus is found and another taken if one is not. You can control the action for the ICAP result string by using the spamfilterX_verdict_n and spamfilterX_action_n matched pair. You can control the action for the verdict string by using spamfilterX_string_action.

0 

port

Specifies the port number on which the ICAP server is running.

1344 

SOCKS_HOST

String. Specifies the name of an intermediate SOCKS server. If this option is specified, the ICAP connection is made through the specified SOCKS server and not directly. 

"" 

SOCKS_PORT

Integer. Specifies the port on which the intermediate SOCKS server is running. 

1080 

verdict

Specifies the verdict string used for MODE 0 and 3. 

"" 

verdict="" (not set)

yes 

null 

ICAP result 

ICAP result 

ICAP result 

no 

default 

default 

ICAP result 

default 

verdict=string

yes 

verdict string

ICAP result 

ICAP result 

ICAP result 

no 

default 

default 

ICAP result 

verdict string