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Samsung DVR SDR-B73303 not connecting

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Samsung DVR SDR-B73303 not connecting

Samsung Security DVR SDR-B73303 will not connect to Xfinty/Comcast to send emails on motion notices.

Below is the screen shot of the DVR for email settings and what I entered  I get an pop up error screen that states

"Authentication Failed ! Invalid Username or Password!"


Email                    Enable 

Encryption            Auto

SMTP Port           00587     also tried 465

SMTP Server

User name   also tried just "myname" 

Password            ************            checked and rechecked dozen times

Sender address

Receiver 1,2,3


Time Int                3 minutes