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4/2/2026 10:43:24 AM
Mailbox unavailable. The server response was: Access denied - Invalid HELO name (See RFC2821 4.1.1.1)
System
CheckResponse
at System.Net.Mail.MailCommand.CheckResponse(SmtpStatusCode statusCode, String response)
at System.Net.Mail.MailCommand.Send(SmtpConnection conn, Byte[] command, MailAddress from, Boolean allowUnicode)
at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception)
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at WebApplication2.Contato.Enviar_Click(Object sender, EventArgs e) in C:\Users\0040482521001\Desktop\C#\projetos\WebApplication1\WebApplication2\WebApplication2\Contato.aspx.cs:line 61
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Analise e Desnvolvimento de Sistemas
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