Getting Error Transport error code was 0x80040217 while Sending Email in Asp.Net

问题

I am trying to send Email

But I am getting this Error.

The message could not be sent to the SMTP server. The transport error code was 0x80040217. The server response was not available

any one having any idea about it please Help me

回答1:

Discovered that you can also get this error when Gmail's security settings don't allow messages to be sent from the address you intend to use. I had to enable access for less secure apps for my account in question by:

Logging into the address you want to use for sending email from Excel.
Visit the page https://www.google.com/settings/security/lesssecureapps
Click Enable Less Secure Apps.
Click Done.

回答2:

It's caused by a wrong username or password for the SMTP server and usually means that the server has disabled your account for spamming i you've sent 1500 mails

回答3:

Thanks for your replies, it worked! it was because I didn't have this option enabled: https://www.google.com/settings/security/lesssecureapps In case somebody needs it, this is the VBScript code I'm using in Qlikview:

SUB SendMail
    Dim objEmail

    Const cdoSendUsingPort = 2  ' Send the message using SMTP
    Const cdoBasicAuth = 1      ' Clear-text authentication
    Const cdoTimeout = 60       ' Timeout for SMTP in seconds

     mailServer = "smtp.gmail.com"
     SMTPport = 465     '25 'SMTPport = 465
     mailusername = "marcos.esgu**@gmail.com"
     mailpassword = "Ki***"

     mailto = "marcos.esgu**@*****" 
     mailSubject = "my test-deleteme" 
     mailBody = "This is the email body" 

    Set objEmail = CreateObject("CDO.Message")
    Set objConf = objEmail.Configuration
    Set objFlds = objConf.Fields

    With objFlds
        .Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = cdoSendUsingPort
        .Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = mailServer
    .Item("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = SMTPport
    .Item("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = True
        .Item("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = cdoTimeout
    .Item("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = cdoBasicAuth
    .Item("http://schemas.microsoft.com/cdo/configuration/sendusername") = mailusername
    .Item("http://schemas.microsoft.com/cdo/configuration/sendpassword") = mailpassword
        .Update
    End With

    objEmail.To = mailto
    objEmail.From = mailusername
    objEmail.Subject = mailSubject
    objEmail.TextBody = mailBody
    'objEmail.AddAttachment "C:\report.pdf"
    objEmail.Send

    Set objFlds = Nothing
    Set objConf = Nothing
    Set objEmail = Nothing
END SUB

回答4:

Had the same problem using BizTalk, where adapter default handler specified to use NTLM authentication (by default). Even though I specified to override handler on send port properties, BizTalk did not allow me to override adapter default handler. I needed to change adapter default handler in order to get it to work.

Now it works!

来源：https://stackoverflow.com/questions/9157087/getting-error-transport-error-code-was-0x80040217-while-sending-email-in-asp-net

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