5.3. Message Transfer Agent (MTA) Configuration
If Red Hat Satellite serves Monitoring-entitled systems and you aim to acknowledge via email the alert notifications you receive, configure your Message Transfer Agent (MTA) to properly handle incoming mail. This is required by the email redirect feature, which allows you to stop notifying users about a Monitoring-related event with a single reply.
Sendmail and Postfix are two options for MTAs that can be enabled in the Red Hat Satellite server.
Note
Only one MTA may be enabled at one time.
5.3.1. Sendmail
To configure sendmail correctly, run the following commands as root.
- Create a symbolic link allowing sendmail to run the notification enqueuer with the following command:
# ln -s /usr/bin/ack_enqueuer.pl /etc/smrsh/.
- Edit the
/etc/aliasesfile on the mail server and add the following line:rogerthat01: "| /etc/smrsh/ack_enqueuer.pl"
- Edit the
/etc/mail/sendmail.mcfile and change:"DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl"
to:"DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl"
- Process the alias with the following command:
# newaliases
- Update the
sendmail-cfpackage:# yum update sendmail-cf
- Restart sendmail:
# service sendmail restart
