Once your mail service is running, you can use your logs to diagnose problems that your
users are having. The logs will be able to identify if email addresses are mistyped or if
the user is over quota. If the user is having problems retrieving his or her mail, you’ll
recognize failed authentication attempts in the logs.
What You’ve Learned
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Mac OS X Server includes a robust email server that handles SMTP, IMAP, and POP
communication.
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Internet email messages travel from server to server based on MX record information
in DNS.
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Numerous mail authentication options are available and can be enabled or disabled
as needed.
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You should configure your server so it does not act as an open-relay server.
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You can configure the mail service to filter spam and virus-infected ...