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Name: checkmk
Rating: 4.7 (114 reviews)

POP3/IMAP Connection and Optional Mail Forwarding

Included in	All Checkmk editions
Source Code License	Open Source
Supported Agents	Active

Logs in into an IMAP, POP3 or EWS mailbox to monitor whether or not the login is possible. An extended, optional, feature is, that the check can fetch all (or just some) mails from the mailbox and forward them as events to the Event Console.

This check can be configured using WATO.