A plugin for monitoring mail servers (SMTP/IMAP)
It is useful to monitor SMTP and IMAP services:
- the service is up and running
- it is accessible
- the configuration is correct
Plesk Tech Support shared this idea
Yves-Eric Martin commented
We recently had an incident because this functionality is missing.
Our SMTP/IMAP setup uses the "mail . ..." hostname. A config change caused our certificate to renew without the "mail." hostname at the next automated renewal.
But the website monitoring uses "www . ..." and did not raise any alarm.
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