Problems w/ Email Authentication

jain747 · Dec 24, 2003

Hi,

I'm trying to use System.Web.Mail.MailMessage() to send emails, but I get this error: The server rejected the sender address. The server response was: 553 Authentication is required to send mail as <something@johndoe.com>. Should I be using another method rather then the one below?

Dim email As New System.Web.Mail.MailMessage()
email.To = "RecipientAddress"
email.From = "SenderAddress"
email.Body = "MessageText"
email.Subject = "SubjectText"
email.BodyFormat = Web.Mail.MailFormat.Text
System.Web.Mail.SmtpMail.SmtpServer = "SmtpServerName"
System.Web.Mail.SmtpMail.Send(email)

Thanks! Merry Christmas!!

Isadore · Dec 24, 2003

Jain -- in a similar code snippet...

Dim myMail As New MailMessage()
myMail.From = "from@microsoft.com"
myMail.To = "to@microsoft.com"
myMail.Subject = "UtilMailMessage001"
myMail.Priority = MailPriority.Low
myMail.BodyFormat = MailFormat.Html
myMail.Body = "<html><body>UtilMailMessage001 - success</body></html>"
SmtpMail.Send(myMail)

...the code looks functionally similar to yours; nothing obvious at first glance. Are you incorporating the System.Web.Mail namespace?

LV · Dec 25, 2003

You can try this: on your app web server, open the IIS consol, right click on "Default SMTP Virtual Server" and select "Properties". In the "Access" tab, click on "Relay" button. Make sure that the "Only the list below" option is checked. Click the "Add" button and enter the localhost IP: 127.0.0.1. Hit "OK" to close both dialog boxes.

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Problems w/ Email Authentication

jain747

Technical User

Isadore

Technical User

LV

Programmer

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