Checks check mailboxes

Table of Contents

Check mailboxes

Script: check_mailboxes

It is a plugin to read users mailboxes and warn if number of unread emails were found.

It shows per user

  • number of unread emails
  • number of emails total
  • the last 10 entries of the mailbox

For performance data it writes the number of unread mail entries.

Return values:

  • unknown - mail command not found or no sudo permission for executing user
  • ok - no mail was found or count of unread emails is below warning level
  • warning - count of unread emails is equal or higher warning level
  • critical - count of unread emails is equal or higher critical level or error on mail command occured

Requirements

  • GNU mail binary or s-nailon RedHat like distros
  • sudo permissions to mail 
icingaclient ALL=(ALL) NOPASSWD: /usr/bin/mail

Standalone installation

From this repository you need next to this script:

  • inc_pluginfunctions shared function for all IML checks written in bash

Syntax

./check_mailboxes -h
______________________________________________________________________

CHECK_MAILBOXES
v1.1

(c) Institute for Medical Education - University of Bern
Licence: GNU GPL 3

https://os-docs.iml.unibe.ch/icinga-checks/Checks/check_mailboxes.html
______________________________________________________________________

Check Mailboxes of local users and count unread mails.

It returs with warning
- if warning level was reached

It returs with error
- if critical level was reached
- one of the mailboxes has an error/ is locked

SYNTAX:

    check_mailboxes 

OPTIONS:

    -h or --help   show this help.

    -w VALUE       warning level  (default: 1)
    -c VALUE       critical level (default: 10)

PARAMETERS:

    none

EXAMPLE:

    check_mailboxes -w 1 -c 5

Examples

No unread items

OK: 0 unread mails in mailboxes of 1 users
--- root: No applicable messages


Limits: warning at 1 - critical at 10 unread mails
 |unread=0;;

Several found message

CRITICAL: 377 unread mails in mailboxes of 2 users
--- root: 2 unread of 2 total
>N   1 root               Tue May  6 08:18  34/1278  apt-listchanges: news for
 N   2 root               Wed Aug 13 02:14  68/2987  apt-listchanges: news for

--- www-data: 375 unread of 382 total
 U 373 Mail Delivery Syst Wed Apr  2 12:35  73/2572  Undelivered Mail Returned
 U 374 Mail Delivery Syst Wed Apr  2 12:58  73/2566  Undelivered Mail Returned
 U 375 Mail Delivery Syst Wed Apr  2 13:54  73/2570  Undelivered Mail Returned
 U 376 Mail Delivery Syst Wed Apr  2 13:59  73/2537  Undelivered Mail Returned
 U 377 Mail Delivery Syst Wed Apr  2 14:05  73/2530  Undelivered Mail Returned
 U 378 Mail Delivery Syst Tue Apr  8 10:51  73/2526  Undelivered Mail Returned
 U 379 Mail Delivery Syst Wed Apr  9 11:05  73/2526  Undelivered Mail Returned
 U 380 Mail Delivery Syst Wed May 28 16:03  73/2566  Undelivered Mail Returned
 U 381 Mail Delivery Syst Thu Jun 19 13:17  73/2566  Undelivered Mail Returned
 U 382 Mail Delivery Syst Wed Jul 30 16:21  73/2566  Undelivered Mail Returned


Limits: warning at 1 - critical at 10 unread mails
 |unread=377;;