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Full Discussion: Configuring Sendmail as a client only, how?
Top Forums UNIX for Dummies Questions & Answers Configuring Sendmail as a client only, how? Post 302971272 by c3rb3rus on Monday 18th of April 2016 12:35:58 PM
Old 04-18-2016
Tools Configuring Sendmail as a client only, how?
We are running sendmail-8.13.4 on AIX.

I need to update the configuration and make sendmail act as a relay client only, meaning it will only be used to send mail out of the host and NOT accept mail.

Here is my client.mc config:
Code:
include(`/usr/samples/tcpip/sendmail/m4/cf.m4')
VERSIONID(`sendmail config for aix7')
OSTYPE(`aixsample')dnl
MASQUERADE_AS(`myserver.com')dnl
FEATURE(`masquerade_envelope')dnl
FEATURE(`accept_unresolvable_domains')
FEATURE(`accept_unqualified_senders')
FEATURE(always_add_domain)dnl
FEATURE(`nullclient',`mail-relay.xxxx.myserver.com')dnl
define(`STATUS_FILE', `/etc/mail/statistics')dnl
define(`MAIL_HUB', `myserver.com.')dnl
define(`LOCAL_RELAY', `myserver.com.')dnl

We have an MS Exchange server, so we are basically using sendmail on a particular AIX host to forward all email to the exchange server and let Exchange handle everything.

The above configuration works fine for sending email to recipients using:
Code:
mail user@myserver.com

What I also need to do is be able to send the email with only specifying the alias part and not the domain, so if I do:
Code:
mail user

** sending email to userid, omitting the @myserver.com recipient domain part

I want sendmail to append the @myserver.com in this situation where a domain is not given. Is this possible without maintaining some sort of alias/list file for every possible userid > userid@mydomain.com?

Thanks.
Last edited by c3rb3rus; 04-20-2016 at 06:26 PM.. Reason: rewrite question to be more specific
 

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LEARN ABOUT DEBIAN

sendmailconfig

SENDMAILCONFIG(8)					      System Manager's Manual						 SENDMAILCONFIG(8)

NAME

       sendmailconfig - configure sendmail for Debian systems

SYNOPSIS

       sendmailconfig [--no-reload]

DESCRIPTION

       sendmailconfig is used to simplify the configuration of sendmail(8) for use on Debian systems.

       In  the	simplest  case,  you  may  run	this program to (re)configure sendmail for your Debian system at any time. It will modify the file
       /etc/mail/sendmail.mc in order to create a working sendmail configuration which will be written to the file /etc/mail/sendmail.cf.

       For advanced configurations, you can modify the sendmail.mc file before generating sendmail.cf. Future invokations of  sendmailconfig  will
       preserve these changes provided they are made at the end of the file.

       Normally  sendmailconfig  will  ask  if	you want to reload sendmail after making changes to its configuration. The --no-reload option will
       avoid this question.

FILES

       /etc/mail/sendmail.mc
	      sendmail m4 input to generate sendmail.cf

       /etc/mail/sendmail.cf
	      actual sendmail configuration file

       /etc/mail/sendmail.cw
	      names for which we will accept mail in the standard configuration

       /etc/mail/sendmail.ct
	      names of trusted users in the standard configuration

SEE ALSO

       sendmail(8)

AUTHOR

       Robert Leslie <rob@mars.org>

								    21-Jan-1997 						 SENDMAILCONFIG(8)
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