SMTP problems

Posted on 2007-10-04
Medium Priority
Last Modified: 2008-01-14
i'm trying to send mail to email address outside of the domain and i'm using the System.Net.Mail objects (not system.web). at first, i just tried a straight up send using the address of my exchange server as the smtp host, but i got relay errors for any addresses that were outside the domain. so i found somewhere that i could use SmtpDeliveryMethod.PickupDirectoryFromIis to get around this problem, but then i got Cannot get IIS pickup directory. so i figured it was because my exchange server did not have the smtp in IIS (it's in exchange and it's separate). so i installed smtp on the web host and configured it with the proper permissions, but now the emails just don't get sent and i don't get any errors.

Dim objMail As New MailMessage()
        objMail.From = New MailAddress("address@internaldomain.com")

        objMail.Subject = "This is an email"
        objMail.Body = "this is a sample body with html in it. <b>This is bold</b> <font color=#336699>This is blue</font>"
        objMail.IsBodyHtml = True

        Dim smtp As New SmtpClient("") 'the localhost
        smtp.DeliveryMethod = SmtpDeliveryMethod.PickupDirectoryFromIis
Question by:craskin
  • 2
LVL 12

Author Comment

ID: 20015980
ah. i just found out that the external address did work, but the email to the internal one did not. that's even weirder. and now that the smtp is added to the localhost, when i switched the smtp server back to the exchange server, it delivered to the outside, but not the inside.
LVL 96

Accepted Solution

Bob Learned earned 1000 total points
ID: 20140446
Did you set up the internal SMTP to deliver mail anywhere?

LVL 12

Author Comment

ID: 20142254
no, do i setup an alias domain or a remote domain? right now, the local smtp just has

servername.domain.com Local (Default)
some long Guid.domain.com Local (Normal)

in the domain list.

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