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check_imap_login Plugin

6 votes
Network Monitoring Software - Download Nagios XI
Log Management Software - Nagios Log Server - Download
Netflow Analysis Software - Nagios Network Analyzer - Download
Python plugin for executing a imap login
This plugin check if a imap log is executed correctly.
It support IMAP and IMAPS (IMAP + SSL)
Reviews (4)
byhenryudha, June 10, 2015
great script.
working on my enviroment.
thanks mate!
We have made a modification of this script for tracking the IMAP response time, with warning and critical thresholds attached to it, as well as printing out the performance data.

You can find the modified version here:

Thanks for the original script!
bydcodix, September 6, 2012
Works OK for me,...

What I saw is that in case the imap server goes down, the check breaks and returns a lot of garbage and exits with "1" (warning). The same happens in case the port is not up.

I made a small modification:

--- 1/check_imap 2012-09-06 13:53:44.760047791 +0200
+++ 2/check_imap 2012-09-06 13:54:08.590047801 +0200
@@ -43,9 +43,17 @@
return 1

if use_ssl:
- M = imaplib.IMAP4_SSL(host=host)
+ try:
+ M = imaplib.IMAP4_SSL(host=host)
+ except Exception, e:
+ print "CRITICAL: IMAP connection not Successful: %s" % e
+ sys.exit(2)
- M = imaplib.IMAP4(host)
+ try:
+ M = imaplib.IMAP4(host)
+ except Exception, e:
+ print "CRITICAL: IMAP connection not Successful: %s" % e
+ sys.exit(2)

M.login(user, password)

Thanks for the check!
byschoppa, January 27, 2011
works perfect. I'm checking cyrus 2.2.13.