User Guide

Chapter 6 89

This scheme can be implemented with any mail server that either supports

running a second instance with different settings, or delivers via LMTP protocol,

or delivers all mail to the specified mail server through SMTP.

Configuration of client module interaction with mail server can be performed with

special scripts (see the item 3.5 on page 27), and manually.

Manual configuration for a client module is done by modifying the filter.conf

configuration file located in the /usr/local/ap-mailfilter3/etc/ directory. The

following is a fragment of that file listing the client module settings:

ClientConnectTo tcp:127.0.0.1:2277

ClientConnectTimeout 10

ClientDataTimeout 30

PipeInProtocol lmtp

PipeOutProtocol lmtp

PipeOutgoingAddr exec:/usr/sbin/sendmail –bs

PipeMultipleMessagesAllowed yes

ClientDefaultDomain localhost

ClientOnError accept

ClientFilteringSizeLimit 500

In addition to the settings described earlier in the appendix A.2.2, for the kas-

milter module you can set the following parameters in the filter.conf file:

• PipeInProtocol – the protocol used for receiving mail messages. The

possible values are smtp, lmtp.

• PipeOutProtocol – the protocol used for sending processed mail

messages. The possible values are smtp, lmtp.

• PipeHELOGreeting – the domain name used by the

kas-pipe module for a greeting during SMTP session. The default value is

kas30pipe.+ <server domain name>.

• PipeOutgoingAddr – socket address used for transfer of processed

messages. An entry in the format tcp:<host>:<port>, where <host> –

filtering server’s IP address, <port> – connection port, points to a network

socket, and entry in format unix:<path_to_file>, where <path_to_file> –

the path to socket file, points to a local socket, and entry in format

exec:/<path to the program executable> – <parameters> points to the

program that will be run for transferring messages.

• PipeOutConnectTimeout=5...600 – timeout for establishment of

connection to a socket or program used for transfer of processed

messages (defined by the PipeOutgoingAddr parameter).