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service is not available 4.3.2 421 when trying to telnet on 25 port RRS feed

  • Question

  • i'm try to telnet to my exchange server (local) and i got this error.

    all the service are up and i see my server is listing to port 25.telnet x.x.x.x 25 gave me:

    service is not available 4.3.2 421

    what to do ?

    Tuesday, May 19, 2015 2:49 PM

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