Default imta.cnf File

The following is a default IMTA configuration file (imta.cnf) for a system behind the firewall (mailhost.eng.company.com) which has a routability scope of the mail server domain (eng.company.com). This particular file is available in the Enterprise Edition of SIMS.

! VERSION=1.1   ! Modified by SIMS administration server on: Wed Aug 05 14:22:14 PDT 1998   !   ! IMTA configuration file   !   ! part I : rewrite rules   !   ! rules to select local users   mailhost.eng.company.com $U%mailhost.eng.company.com@mailhost.eng.company.com   mailhost.Eng $U%mailhost.eng.company.com@mailhost.eng.company.com   mailhost $U%mailhost.eng.company.com@mailhost.eng.company.com   eng.company.com $E$U%$D@mailhost.eng.company.com   !   ! sims-ms   sims-ms.mailhost.eng.company.com $E$U@sims-ms-daemon   sims-ms.mailhost $E$U@sims-ms-daemon   !   ! pipe   pipe.mailhost.eng.company.com $E$U@pipe-daemon   pipe.mailhost $E$U@pipe-daemon   !   ! tcp_intranet   .eng.company.com $E$U%$H.eng.company.com@tcp_local-daemon   * $U%$&0.eng.company.com@tcp_local-daemon   eng $U%eng.company.com@tcp_local-daemon   .eng $U%$H.eng.company.com@tcp_local-daemon   !   ! tcp_default_router   </etc/opt/SUNWmail/imta/internet.rules   . $E$U%$H@tcp-daemon   [] $E$U%$[IMTA_LIBUTIL,hostName,$L]@tcp-daemon   !

! reprocess   reprocess $E$U%reprocess.mailhost.eng.company.com@reprocess-daemon   reprocess.mailhost.eng.company.com $E$U%reprocess.mailhost.eng.company.com@reprocess-daemon   !   ! defragment   defragment $E$U%defragment.mailhost.eng.company.com@defragment-daemon   defragment.mailhost.eng.company.com $E$U%defragment.mailhost.eng.company.com@defragment-daemon   !   ! conversion   conversion $E$U%conversion.mailhost.eng.company.com@conversion-daemon   conversion.mailhost.eng.company.com $E$U%conversion.mailhost.eng.company.com@conversion-daemon   !   ! bitbucket   bitbucket $E$U%bitbucket.mailhost.eng.company.com@bitbucket-daemon   bitbucket.mailhost.eng.company.com $E$U%bitbucket.mailhost.eng.company.com@bitbucket-daemon   !   ! part II : channel blocks   !   ! delivery channel to local /var/mail store   l noswitchchannel copywarnpost copysendpost postheadonly charset7 us-ascii charset8 iso-8859-1 subdirs 20 immnonurgent logging viaaliasrequired notices 1 2 4 7 serviceall   mailhost.eng.company.com   !   ! sims-ms   sims-ms queue single_job copywarnpost copysendpost postheadonly noswitchchannel charset7 us-ascii charset8 iso-8859-1 subdirs 20 immnonurgent logging serviceall   sims-ms-daemon   !   ! pipe   pipe single subdirs 20 copywarnpost copysendpost postheadonly immnonurgent noswitchchannel logging notices 1 2 4 7 serviceall   pipe-daemon

!   ! tcp_intranet   tcp_local smtp single_sys subdirs 20 copywarnpost copysendpost postheadonly immnonurgent noreverse logging notices 1 2 4 7   tcp_local-daemon mailhost.eng.company.com   tcp-daemon mailhost.eng.company.com   !   ! reprocess   reprocess copywarnpost copysendpost postheadonly   reprocess-daemon   !   ! tcp_default_router   tcp_default_router smtp daemon mailhost.eng.company.com copysendpost copywarnpost postheadonly subdirs 20 immnonurgent logging notices 1 2 4 7   !   ! defragment   defragment copywarnpost copysendpost postheadonly   defragment-daemon   !   ! conversion   conversion copywarnpost copysendpost postheadonly   conversion-daemon   !   ! bitbucket   bitbucket copywarnpost copysendpost postheadonly   bitbucket-daemon

The imta.cnf file defines several channels. The default channels defined in the sample default imta.cnf file are described in TABLE 3-9.

TABLE  3-9   imta.cnf Channel Descriptions

channel	description
l	The local (l) channel is used to deliver messages to addresses on the local host. Message files queued to the l channel are delivered to local users by the local channel program l_master. /opt/SUNWmail/imta/bin/sendmail is the slave program invoked to queue the message to the appropriate queues.
sims-ms	The sims-ms channel is used to deliver messages to the SIMS Message Store. Message files queued to this channel are delivered by the ims_master program
pipe	Pipe channels are used to perform delivery via a site supplied program or script. Commands executed by the pipe channel are controlled by the administrator via the imta program interface. Pipe channels are also used by the autoreply program.
tcp_intranet tcp_local tcp_default_router	These channels implement SMTP over TCP/IP. The multithreaded TCP SMTP channel includes a multithreaded SMTP server that runs under the control of the IMTA SMTP Dispatcher. Outgoing SMTP mail is processed by the channel program tcp_smtp_client, and run as needed under the control of the IMTA Job Controller.
reprocess	The reprocess channel is the intersection of all other channel programs--they perform only those operations that are shared with other channels. It is simply a channel queue whose contents are processed and requeued to other channels.
defragment	The defragment channel provides the means to reassemble messages.
conversion	The conversion channel performs body-part-by-body-part conversions on messages flowing through the IMTA.
bitbucket	The bitbucket channel is used for messages that need to be discarded.
addressing	The addressing channel is used to extract addressing information from a message body.