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A Linux server's own email solution can be used to receive alerts about LinuxGSM.
LinuxGSM will send an email using the
Postfix or equivalent must be setup and correctly configured before sending emails. Failure to correctly configure Postfix and a domain for your server will mean the email alert may be flagged as spam or not arrive at all. Configuring postfix is not covered here, but there are many tutorials online to help.