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Configure Postfix as a Send Only SMTP Server

This article will guide you on how to perform configuration of Postfix as a Send Only SMTP Server which involves a series of steps that include installing postfix and modifying the configuration file.

How to fix 550 5.7.1 authentication required Email client error

Most Email client users get SMTP error such as "550 5.7.1 authentication required" when there is an issue or errors in the email configuration information.

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