cant send email error 550 - add to previous message today

Discussion in 'Windows Vista Mail' started by sregina1, Oct 17, 2009.

  1. sregina1

    sregina1 Guest

    The message could not be sent. The authentication setting might not be
    correct for your outgoing e-mail [SMTP] server. For help solving this
    problem, go to Help, search for "Troubleshoot Windows Mail", and read the
    "I'm having problems sending e-mail" section. If you need help determining
    the proper server settings, please contact your e-mail service provider.

    The rejected e-mail address was 'null'. Subject 'Re: Hi', Account:
    'pop.comcast.net', Server: 'smtp.comcast.net', Protocol: SMTP, Server
    Response: '550 5.5.0 <null> domain name required', Port: 587, Secure(SSL):
    No, Server Error: 550, Error Number: 0x800CCC79
     
    sregina1, Oct 17, 2009
    #1
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  2. Double-check the email address you're sending the message to. The error
    suggests it's, e.g, 'JohnSmith' and not ''
     
    PA Bear [MS MVP], Oct 17, 2009
    #2
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  3. sregina1

    Sam Hobbs Guest

    I hope PA Bear's answer helped, but the part that says that the "e-mail
    address was 'null'" looks suspicious to me. There might be something more
    happening here, such as interference from an antivirus program.
     
    Sam Hobbs, Oct 17, 2009
    #3
  4. sregina1

    jensen1977 Guest

    Please tell me how you stopped this message from appearing each time you sent
    other emails. I don't know how to get this done. Thanks.
     
    jensen1977, Oct 17, 2009
    #4
  5. sregina1

    t-4-2 Guest

    1.) Always, Always, start a new thread for yourself.
    Do not " piggy-back " other posts. You might have a similar problem, but the
    cause of your problem may not be the same as the original poster.
    2.) Post YOUR error message, verbatim.

    t-4-2

     
    t-4-2, Oct 17, 2009
    #5
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