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OpenSolaris 2009.06 - man page for sendmail.cf (opensolaris section 4)

sendmail(4)				   File Formats 			      sendmail(4)

NAME
       sendmail, sendmail.cf, submit.cf - sendmail configuration files

SYNOPSIS
       /etc/mail/sendmail.cf

       /etc/mail/submit.cf

DESCRIPTION
       The sendmail.cf and submit.cf files are the configuration files for sendmail(1M). Starting
       with version 8.12 of sendmail, which was shipped with version 9 of the  Solaris	operating
       system,	two configuration files are used for submission and transmission of mail, instead
       of only sendmail.cf, as before. These are:

       sendmail.cf    Remains the principal sendmail configuration file. Used for the Mail Trans-
		      mission Agent (MTA).

       submit.cf      Used  for the Mail Submission Program (MSP). The MSP is used to submit mail
		      messages. Unlike the MTA, it does not run as an SMTP daemon.

       The MSP does not require root privileges, thus the two-file model provides better security
       than the pre-sendmail 8.12 model, in which the MSP ran as a daemon and required root priv-
       ileges.

       In the default sendmail configuration, sendmail uses submit.cf, as indicated in ps(1) out-
       put. In ps output, you will observe two sendmail invocations, such as the ones below:

	 /usr/lib/sendmail -Ac -q15m
	 /usr/lib/sendmail -bd -q15m

       The  first indicates the use of submit.cf, with the client queue (/var/spool/clientmqueue)
       being checked--and, if needed, flushed--every 15 minutes. The second invocation runs send-
       mail as a daemon, waiting for incoming SMTP connections.

       As  shipped,  sendmail.cf and, in particular, submit.cf, are appropriate for most environ-
       ments. Where a knowledgeable system administrator needs to make a change,  he  should  use
       the following procedures.

       For sendmail.cf:

	   1.	  Change directories to the directory that contains the source files for the con-
		  figuration files.

		    # cd /etc/mail/cf/cf

	   2.	  Create a copy of the sendmail file for your system.

		    # cp sendmail.mc `hostname`.mc

	   3.	  Edit `hostname`.mc. Make changes suitable for your system and environment.

	   4.	  Run make to generate the configuration file.

		    # /usr/bin/make `hostname`.cf

	   5.	  Copy the newly generated file to its correct location.

		    # cp `hostname`.cf /etc/mail/sendmail.cf

	   6.	  Restart the sendmail service.

		    # svcadm restart sendmail

       You must restart sendmail for sendmail.cf file changes to take  effect,	as  indicated  in
       step  6.  Steps	4  -  6 can be automated. See Automated Rebuilding of Configuration Files
       below.

       For submit.cf:

	   1.	  Change directories to the directory that contains the source files for the con-
		  figuration files.

		    # cd /etc/mail/cf/cf

	   2.	  Create a copy of the submit file for your system.

		    # cp submit.mc submit-`hostname`.mc

	   3.	  Edit	submit-`hostname`.mc.  Make changes suitable for your system and environ-
		  ment.

	   4.	  Run make to generate the configuration file.

		    # /usr/bin/make submit-`hostname`.cf

	   5.	  Copy the newly generated file to its correct location.

		    # cp submit-`hostname`.cf /etc/mail/submit.cf

       You do not need to restart sendmail for changes to submit.cf to take effect.  Steps 4  and
       5 can be automated. See Automated Rebuilding of Configuration Files below.

   Enabling Access to Remote Clients
       The  sendmail(1M) man page describes how the config/local_only property can be set to true
       or false to disallow or allow, respectively, access to remote clients for unmodified  sys-
       tems.

       Setting	 values   for  the  following  properties  for	the  service  instance	svc:/net-
       work/smtp:sendmail results in automated (re)building of configuration files:

	 path_to_sendmail_mc
	 path_to_submit_mc

       The values for these properties should be strings which represent the path name of the .mc
       files referred to in steps 2 and 3 of both procedures above. Recommended values are:

	 /etc/mail/cf/cf/`hostname`.mc
	 /etc/mail/cf/cf/submit-`hostname`.mc

       Each  property,	if set, results in the corresponding .mc file being used to (re)build the
       matching .cf file when the service is started.

       These properties persist across upgrades and patches. To prevent a patch or  upgrade  from
       clobbering  your  .cf file, or renaming it to .cf.old, you can set the desired  properties
       instead.

FILES
       /etc/mail/cf/README    Describes sendmail configuration files.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWsndmr 		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+

SEE ALSO
       make(1S), ps(1), sendmail(1M), svcadm(1M), attributes(5)

       System Administration Guide: Network Services

SunOS 5.11				    8 May 2008				      sendmail(4)


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