FW: Not sending e-mails

[Scott Miller]

[root at mail4 ~]# echo "Hello world" | /bin/mail -s "Test Email"
root at localhost

[root at mail4 ~]# /etc/mail/sendmail.cf: line 0: cannot open: No such file or
directory

[root at mail4 ~]#

 

I'm running postfix - not sure why it's looking for sendmail.

 

 

From: Martin Melin [mailto:mmelin at gmail.com] 
Sent: Thursday, October 01, 2009 11:01 AM
To: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] FW: Not sending e-mails

 

Try simply copying the command_line for notify-service-by-email and running
it in a shell yourself. Or just do:
# echo "Hello world" | /bin/mail -s "Test Email" root at localhost

On Thu, Oct 1, 2009 at 8:28 PM, Scott Miller <srmiller at interbel.net> wrote:


Scott Miller wrote:
>> I know this has been hit over and over, and I've read literally
everything I
>> could find, but to no avail.  I have a newly install of Nagios 3.2.0 on a
>> Fedora Core 8 with Postfix/Dovecot.  I have a modified script (postfix
mail
>> queue monitor I shared a week or so ago).  The only thing Nagios is doing
on
>> this box is looking at local services.  When I change any threshold so I
>> will go into alarm, it does, but no e-mails get sent out.
>>
>> I can see in my logs the following when something comes into alarm:
>>
>> [1254408621] SERVICE ALERT: localhost;Postfix Mail
>> Queue;CRITICAL;SOFT;1;CRITICAL: Postfix mailq has 14 messages queued for
a
>> total of 12492 Kbytes.
>> [1254408651] SERVICE ALERT: localhost;Current Load;OK;SOFT;2;OK - load
>> average: 4.87, 2.73, 1.43
>> [1254408681] SERVICE ALERT: localhost;Postfix Mail
>> Queue;CRITICAL;SOFT;2;CRITICAL: Postfix mailq has 16 messages queued for
a
>> total of 12497 Kbytes.
>> [1254408741] SERVICE ALERT: localhost;Postfix Mail
>> Queue;CRITICAL;SOFT;3;CRITICAL: Postfix mailq has 16 messages queued for
a
>> total of 12689 Kbytes.
>> [1254408801] SERVICE ALERT: localhost;Postfix Mail
>> Queue;CRITICAL;HARD;4;CRITICAL: Postfix mailq has 15 messages queued for
a
>> total of 12494 Kbytes.
>> [1254408801] SERVICE NOTIFICATION: nagiosadmin2;localhost;Postfix Mail
>> Queue;CRITICAL;notify-service-by-email;CRITICAL: Postfix mailq has 15
>> messages queued for a total of 12494 Kbytes.
>> [1254408801] SERVICE NOTIFICATION: nagiosadmin;localhost;Postfix Mail
>> Queue;CRITICAL;notify-service-by-email;CRITICAL: Postfix mailq has 15
>> messages queued for a total of 12494 Kbytes.
>>
>> Wondering if anyone could double check the pertinent parts of my config?
>>
>> Thanks in advance.
>>
>> Scott Miller
>
> What's in your mail log?  Nagios is trying to send notifications using
> the command you've defined, according to the logs. You haven't provided
> the definition for that command (notify-service-by-email), but I assume
> it's trying to send an email.
>
> If you're using anything like the example commands that come with
> Nagios, it is probably using something like "/bin/mail" to send the
> message, and your mail log would be a good place to look for why it's
> not being delivered.

Sorry - didn't include that from the commands.cfg - Here's what I have.

commands.cfg
============
# 'notify-host-by-email' command definition
define command{
       command_name    notify-host-by-email
       command_line    /usr/bin/printf "%b" "***** Nagios
*****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState:
$HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time:
$LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert:
$HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
       }

# 'notify-service-by-email' command definition
define command{
       command_name    notify-service-by-email
       command_line    /usr/bin/printf "%b" "***** Nagios
*****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService:
$SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState:
$SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional
Info:\n\n$SERVICEOUTPUT$" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service
Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
       }

This is the exact same way I have it on another machine running checks for
multiple boxes and devices.  The only difference, is this server is running
Postfix, the other (working) is running Sendmail.

In my logs:
/var/log/maillog - grep for nagios - there's nothing
/var/log/messages shows
Oct  1 10:53:20 mail4 nagios: SERVICE NOTIFICATION:
nagiosadmin2;localhost;Postfix Mail
Queue;CRITICAL;notify-service-by-email;CRITICAL: Postfix mailq has 13
messages queued for a total of 3326 Kbytes.
Oct  1 10:53:20 mail4 nagios: SERVICE NOTIFICATION:
nagiosadmin;localhost;Postfix Mail
Queue;CRITICAL;notify-service-by-email;CRITICAL: Postfix mailq has 13
messages queued for a total of 3326 Kbytes.

Looks like it's trying - maybe something in Postfix stoping it?  I'll have
to do a bit more digging and testing.

Scott Miller




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