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SMTP delivery Error Gmail 501-5.5.4 HELO/EHLO argument "" invalid, closing connection

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I was unable to send email notifications using my gmail account settings. The error was due to the use of unknown HELO/EHLO identifier in the notification delivery settings in my PRTG server.

501-5-5-4-helo-ehlo-argument closing-connection gmail-smtp-settings nvalid

Created on Nov 3, 2017 5:56:53 PM

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SMTP delivery Error Gmail 501-5.5.4 HELO/EHLO argument "" invalid, closing connection

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