check_pmg

                                        
Checks the mail, spam, and virus count for anomalies and validates configured relay hosts of Proxmox Mail Gateway

                    

        
        

            
            

                

    

    
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Icinga2 Scripts


check_pmg



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check_pmg


About


This plugin checks and warns for anomalies regarding users exceeding an overall sent mail count, spam mail count or virus mail count of proxmox mail gateway. It uses the pmgsh API to retrieve the data and has to be run locally on your PMG instance.


As the sender statistics endpoint of PMG only counts mails per sender and does not account a single mail with n recipients as n mails, the detail endpoint has to be queried for every sender. As this process will take a while, the results need to be cached and updated via a cronjob (see below). Do not attempt do run via icinga / nrpe with the -dc as this will result in a timeout.


The plugin can also check your configuration for configured relay host domains, as those get sometimes overwritten in update processes.


Install


Add the following entry to visudo (adapt to user this script is invoked with):


nagios ALL=NOPASSWD: /usr/bin/pmgsh get *


Add an entry to crontab to locally cache the API responses for 30 minutes, i.e.,:


*/30 * * * * /usr/bin/python3.9 /usr/lib/nagios/plugins/check_pmg.py -dc 1


Usage


usage: check_pmg.py [-h] [-c MAXCOUNT] [-v VIRUSCOUNT] [-s SPAMCOUNT] [-d DOMAIN] [-f CACHE_FILE] [-dc DO_CACHING]

Check Proxmox status

optional arguments:
  -h, --help            show this help message and exit
  -c MAXCOUNT, --maxcount MAXCOUNT
                        Threshold for max. mails sent in a day. Default: 500
  -v VIRUSCOUNT, --viruscount VIRUSCOUNT
                        Threshold for max. spam mails sent in a day. Default: 5
  -s SPAMCOUNT, --spamcount SPAMCOUNT
                        Threshold for max. virus mails sent in a day. Default: 10
  -d DOMAIN, --domain DOMAIN
                        Specify a domain which will be validated as configured relay host. Default: None
  -f CACHE_FILE, --cache_file CACHE_FILE
                        Path to the local PMG Caching file.
  -dc DO_CACHING, --do_caching DO_CACHING
                        Run with this flag to create a local caching file.


Example: python3 check_pmg.py -c 3000 -d domain1.com -d mail.domain2.com