How to Check to see if SMTP Server requires authentication

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Networking > How to Check to see if SMTP Server requires authentication
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  1. This must be done from the same local network/subnet of the DVR. Most SMTP Server disable mail relaying, so this will often not work from a different ISP, but will work at the DVR’s location.
  2. Telnet into the SMTP Server, using port 25.

example: telnet 172.20.9.99 25

  1. Type ‘HELO dedicatedmicros.com’
  2. Type ‘MAIL FROM: <yourname>@dedicatedmicros.com’
  3. If you do not receive a ‘250 OK’ message, then this server cannot be used.

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