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Full Discussion: sendmail.... any help?
Top Forums UNIX for Dummies Questions & Answers sendmail.... any help? Post 33090 by RTM on Monday 16th of December 2002 01:07:04 PM
Old 12-16-2002
Check on the def.com system that user1 gets email sent from def.com. This will insure any email coming into def will not be sent somewhere else.

On def, send mail to user1. The best way to do it is by running sendmail in verbose mode (normally $ /usr/lib/sendmail -v user1 < somefile ) and inputting the contents of a small file as the body.

Look for the the following in your sendmail.cf files on both servers.

# "Smart" relay host (may be null)
DSmailhost.mydomain.com

# who I send unqualified names to (null means deliver locally)
DRmailhost.mydomain.com

# who gets all local email traffic ($R has precedence for unqualified names)
DHmailhost.mydomain.com

# who I masquerade as (null for no masquerading) (see also $=M)
DMmydomain.com

# class E: names that should be exposed as from this host, even if we masquerade
# class L: names that should be delivered locally, even if we have a relay
# class M: domains that should be converted to $M
CL root oncall bkops
CE root


You will note that the Class L will tell the server to keep root, oncall, and bkops email on this server. All other email is forwarded to mailhost (a CNAME in DNS which can be set to whichever server is handling email). At some point, if all your email is strickly UNIX based, the server that gets the email must know about all the different users (they must be real accounts in /etc/passwd) or sendmail will send back the message as undeliverable.

Also insure your postmaster email is going to a real account. Messages that bounce will eventually show up there and it's a good way to figure out what may be wrong - also check your messages file or log files
 

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LEARN ABOUT CENTOS

reporter-mailx

REPORTER-MAILX(1)						 LIBREPORT MANUAL						 REPORTER-MAILX(1)

NAME

       reporter-mailx - Sends contents of a problem directory via email.

SYNOPSIS

       reporter-mailx [-v] -d DIR [-c CONFFILE]

DESCRIPTION

       The tool reads a problem directory, composes an email message from the directory contents, and uses mailx to send the message to specified
       recipient.

       Properties of email messages can be specified in a configuration file, and via environment variables.

   Configuration file
       Configuration file contains entries in a format "Option = Value".

       The options are:

       Subject
	   The subject of the email message.

       EmailFrom
	   The sender of the email message.

       EmailTo
	   The recipient of the email message.

       SendBinaryData
	   Use yes/true/on/1 to attach all binary files from the problem directory to the email. This can cause the emails to be very large.

   Integration with ABRT events
       reporter-mailx can be used as a reporter, to allow users report problems via email when they decide to do it. This usage is pre-configured
       in /etc/libreport/events.d/mailx_event.conf:

	   EVENT=report_Mailx	   reporter-mailx

       It can also be used to notify administrator automatically when a problem happens. When this is desired, modify the event configuration file
       to run the tool on the post-create event:

	   EVENT=post-create	   reporter-mailx

OPTIONS

       -d DIR
	   Path to problem directory.

       -c CONFFILE
	   Path to configuration file. When used in ABRT event system, the file contains site-wide configuration. Users can change the values via
	   environment variables.

ENVIRONMENT VARIABLES

       Environment variables take precedence over values provided in the configuration file.

       Mailx_Subject
	   Subject of the email message.

       Mailx_EmailFrom
	   Sender of the email message.

       Mailx_EmailTo
	   Recipient of the email message. If nor the environment variable nor the corresponding option is defined, the message is send to
	   "root@localhost".

       Mailx_SendBinaryData
	   Use yes/true/on/1 to attach all binary files from the problem directory to the email.

AUTHORS

       o   ABRT team

LIBREPORT 2.1.11						    06/18/2014							 REPORTER-MAILX(1)
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