Maillog not logging email information

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I have installed Sendmail on RHEL 6 and removed Postfix in order to avoid conflicts. I'm able to send emails however maillog doesn't show information related to them, only daemon startup and shutdown information

cat maillog
sendmail[96339]: starting daemon (8.14.4): SMTP+queueing@01:00:00
sm-msp-queue[96350]: starting daemon (8.14.4): queueing@01:00:00
sendmail[96399]: starting daemon (8.14.4): SMTP+queueing@01:00:00
sm-msp-queue[96410]: starting daemon (8.14.4): queueing@01:00:00
sendmail[102362]: starting daemon (8.14.4): SMTP+queueing@01:00:00
sm-msp-queue[102373]: starting daemon (8.14.4): queueing@01:00:00
sendmail[106151]: starting daemon (8.14.4): SMTP+queueing@01:00:00
sm-msp-queue[106162]: starting daemon (8.14.4): queueing@01:00:00
sendmail[109104]: starting daemon (8.14.4): SMTP+queueing@01:00:00
sm-msp-queue[109115]: starting daemon (8.14.4): queueing@01:00:00

I looked at rsyslog.conf and it looks right:

mail.* -/var/log/maillog

I tried to restart rsyslog but it did not change anything. Any ideas about what could be causing this?

FD
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Responses

ir. Jan Gerrit Kootstra's picture Guru 6222 points
17 May 2018 8:42 PM

Hi Frank,

Due to the - before the logfile you do not force a file sync to disk after the message is received by rsyslog. The messages stay in memory until the message buffer is full.

Removing the - will force a file sync after each message being received, so debugging gets easier.

Regards,

Jan Gerrit

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