Question : "Send on behalf" query

Hi

Our setup is as below:

Application server (running IIS) > Sendmail relay > Exchange (Internal)/Internet

Our mail domain is domain.com. The Sendmail relay is configured to reject mail with a MAIL FROM: address of @domain.com (since only Exchange should use this, not application servers).

We have an application on a server named App1 that needs to send email on behalf of a user. So, we were thinking of using the Send on Behalf functionality. Therefore, the application would send mail with:

From: [email protected]
Sender: [email protected]m

Have I got these the right way around?

Also, we need to ensure that the MAIL FROM: is not @domain.com. Does anyone know, when an application sends email - is the MAIL FROM: derived from the From: or Sender:, or does this purely depend on the application?

Answer : "Send on behalf" query

'Send on behalf' funcitonality will not work from an Applicaiton as far I understand. 'From' & 'Sender' both are same so not sure what you trying to say here.

What type of application do you use? does your application account has mailbox on your exchange server? where is application server located inside your environment?