Postfix Queue building

Looks like it's munin trying to send emails and you've not configured it to send correctly. Check your munin.conf

Use the 'postsuper' command to remove messages from the queue.

For details:

man postsuper

Thanks for the tip on postsuper, I've removed all the messages from the queue now. Just for my own information, is this a queue of mail to be sent, or mail that has been returned?

Here's my munin.conf, I added the contact.me.command mail lines on Friday with no effect..

cat munin.conf
# Example configuration file for Munin, generated by 'make build'

# The next three variables specifies where the location of the RRD
# databases, the HTML output, and the logs, severally.  They all
# must be writable by the user running munin-cron.
dbdir   /var/lib/munin
htmldir /var/www/munin
logdir  /var/log/munin
rundir  /var/run/munin

# Where to look for the HTML templates
tmpldir /etc/munin/templates

# Make graphs show values per minute instead of per second
#graph_period minute

# Drop somejuser@fnord.comm and anotheruser@blibb.comm an email everytime
# something changes (OK -> WARNING, CRITICAL -> OK, etc)
contact.me.command mail -s "Munin notification" moses@site.comm
contact.me.always_send critical
#contact.anotheruser.command mail -s "Munin notification" anotheruser@blibb.comm
#
# For those with Nagios, the following might come in handy. In addition,
# the services must be defined in the Nagios server as well.
#contact.nagios.command /usr/sbin/send_nsca -H nagios.host.com -c /etc/send_nsca.cfg

# a simple host tree
[localhost.localdomain]
    address 127.0.0.1
    use_node_name yes

#
# A more complex example of a host tree
#
## First our "normal" host.
# [fii.foo.com]
#       address foo
#
## Then our other host...
# [fay.foo.com]
#       address fay
#
## Then we want totals...
# [foo.com;Totals] #Force it into the "foo.com"-domain...
#       update no   # Turn off data-fetching for this "host".
#
#   # The graph "load1". We want to see the loads of both machines...
#   # "fii=fii.foo.com:load.load" means "label=machine:graph.field"
#       load1.graph_title Loads side by side
#       load1.graph_order fii=fii.foo.com:load.load fay=fay.foo.com:load.load
#
#   # The graph "load2". Now we want them stacked on top of each other.
#       load2.graph_title Loads on top of each other
#       load2.dummy_field.stack fii=fii.foo.com:load.load fay=fay.foo.com:load.load
#       load2.dummy_field.draw AREA # We want area instead the default LINE2.
#       load2.dummy_field.label dummy # This is needed. Silly, really.
#
#   # The graph "load3". Now we want them summarised into one field
#       load3.graph_title Loads summarised
#       load3.combined_loads.sum fii.foo.com:load.load fay.foo.com:load.load
#       load3.combined_loads.label Combined loads # Must be set, as this is
#                                                 # not a dummy field!
#
## ...and on a side note, I want them listen in another order (default is
## alphabetically)
#
# # Since [foo.com] would be interpreted as a host in the domain "com", we
# # specify that this is a domain by adding a semicolon.
# [foo.com;]
#       node_order Totals fii.foo.com fay.foo.com
#

It's a queue of mail to be sent, notifying of mail that was returned. You can check your mail.log for full details, but I suspect moses@site.comm isn't your e-mail address. Double-check that.

Thanks for that hoopycat, I never picked up that the comments to the plugin use a .comm rather than .com email. Strange.

I've fixed that one now, still no email and the queue is building up again.

@Moses:

still no email and the queue is building up again.

Mose, without knowing the actual domain name(s) and/or IP's you are having problems with, it is difficult for anyone to analyze anything based on what you have provided.

What does your mail logs shows? Are you utilizing a firewall?

–

Travis