Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have recently been approached by an employee who claimed he was not getting all of his email sent from our server. Therefore I opened up exchange system manager and navigated through message history. I found out that only 2 internal emails were receiving the automated messages despite the fact that 4 email addresses were listed in the TO: field of the email.

For example, the email lists recipient A,B,C,D's email in the TO: field but only sends the message to recipient A and B.

Another piece worth noting is the emails are Sent via the SmtpClient class in Visual Basic, in .NET 2.0

Any ideas as to why the email is only being sent to certain clients email address's?

share|improve this question

Do you have the SMTP logs enabled? It is quite possible that some of the mail's recipients have been refused right away, but your programmatic SMTP client routine has not defined anything to handle this case and just swallowed the error responses. You would need to check the SMTP logs for this particular message.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.