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Full Discussion: sendmail: trusted-users or aliases?
Top Forums UNIX for Advanced & Expert Users sendmail: trusted-users or aliases? Post 302542423 by alan on Wednesday 27th of July 2011 02:14:09 PM
Old 07-27-2011
sendmail: trusted-users or aliases?
For a project that I have been assigned to, I need to send emails to a business partner (business_partner.com) from one production server. However, my emails neither reach their destination nor bounce back to me.

Working with our business partner's IT support, the following error was discovered in their maillogs:
Quote:
chqsmt05 postfix/smtpd[1605]: NOQUEUE: reject: MAIL from unknown
[hidden_ip_address]: 450 4.1.8 <ddwmadm@pxclpd30.hidden_domain_name.com>: Sender address rejected: Domain not found;

from=<ddwmadm@pxclpd30.hidden_domain_name.com> proto=ESMTP helo=<pmempe31.prd.ext.hidden_domain_name.com>
Further analysis by my IT support shows that emails are successfully sent out ("Message accepted for delivery"):

Quote:
[root@hidden_host_name log]# grep -i business_partner maillog*
maillog.1:May 13 17:41:18 hidden_host_name sendmail[23823]: p4DHfIet023823: to=me@hidden_domain_name.com,customer@business_partner.com, ctladdr=user_name (8116/6124), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=120260, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (p4DHfI53023824 Message accepted for delivery)
The app I coded is not using a public internet email address (e.g. me@hidden_domain_name.com) to send these notifications. Instead, it uses an intranet email address (the server's where my code resides: user_name@servername.hidden_domain_name.com).

My IT support guys believe it is the cause of the problem. We created an alias but it made no change. Would adding my public internet email address to "trusted-users" file (we use sendmail) help?

How can I solve this?

Al.
 

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LEARN ABOUT DEBIAN

sensible-mda

SENSIBLE-MDA(8) 					      System Manager's Manual						   SENSIBLE-MDA(8)

NAME

       sensible-mda - a generic local MDA router for Debian systems

SYNOPSIS

       sensible-mda from to detail client-addr

DESCRIPTION

       sensible-mda  is used to simplify the installation and configuration of sendmail(8) , or other MTAs for use on Debian systems.  With sensi-
       ble-mda, sendmail can support a plethora of MDAs (procmail, maildrop, deliver, etc.) without having  pick any one of them as required.

FUNCTION

       sensible-mda is called by sendmail as a local mailer when the following exists in sendmail.mc:
       define(`LOCAL_MAILER_ARGS', `sensible-mda $g $u $h ${client_addr}')dnl

       sensible-mda will look for the following MDAs (in this order), and pass the mail on to the first SUID MDA found (Or first found MDA, if run
       w/euid=root): procmail(1), maildrop(1), deliver(8), mail.local(8)

OPTIONS

       Available command line options are the following:

       from   The sender of this email (sendmail $g variable)

       to     The recipient of this email (sendmail $u variable)

       detail The detail portion of the recipient userid (sendmail $h variable) - ie:
	      cowboy+sendmail@debian.org

       client-addr
	      TCP/IP address of the sender (sendmail ${client_addr} variable) Not used (for the nonce)

FILES

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

       /etc/mail/sendmail.cf
	      actual sendmail configuration file (treated as a binary file)

SEE ALSO

       sendmail(8), procmail(1), maildrop(1), deliver(8), mail.local(8)

BUGS

       None known so far.

AUTHOR

       Richard Nelson <cowboy@debian.org>

HISTORY

4th Berkeley Distribution					  October 21 1999						   SENSIBLE-MDA(8)
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