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  • Category: Complaints

    Sending mail using gmail error.

    I try to use System.net.mail

    using System.Net.Mail;

    When I try in my computer I have no problem.
    But when I publish on aspspider.net
    I've got this exception below:
    System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: The remote name could not be resolved: 'smtp.gmail.com' at

    Thank you.
  • #7050
    I try to use System.net.mail

    But when I publish on aspspider.net

    The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at


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