EmailMessage in EWS Managed API: The From Field

I am using the Exchange Services Managed API.... I am able to send emails just fine with it, but is there a way to change the displayed From field when the email is sent....

Currently we have a default user called DoNotReply@xxxxxxx.com. When ever I send the email it shows up in the from field as DoNotReply.

Can I change that in code?

I tried using:

EmailM开发者_C百科essage emailMessage = new EmailMessage(service);
emailMessage.From="xxxxx xxxxx xxxxx";`

But that doesn't seem to change anything. So, is it possible to do this?

You'll need the "Send as" permission for the email address you want to use. And you cannot use an email address which is not local to your organization.

http://technet.microsoft.com/en-us/library/bb676368.aspx

I ended up asking the Exchange admin to just change the display name for DoNotReply email