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SQL SERVER – Database Mail Error: The SMTP Server Requires a Secure Connection or the Client was not Authenticated. The Server Response Was: 5.5.1

(Pinal Dave) Have you ever configured database mail using Gmail account? There are many articles on the internet describing the steps. In this blog, we would learn about fixing an error “The SMTP server requires a secure connection or the client was not authenticated” which you might see when databa