GNOME Bugzilla – Bug 673528
Unable to send via EWS - "user account ... does not have the right to send mail on behalf..."
Last modified: 2012-07-25 15:07:23 UTC
Attempting to send an email message using EWS (Exchange 2007) results in the following message box: ------ An error occurred while sending. How do you want to proceed? The reported error was "The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account.". ------ After some research and fiddling, it appears that EWS will return this when sending a message that includes a From: header with any valid email address. It appears the recommendation is to exclude the From: header submitted message and let Exchange add it instead. I was able to confirm this by saving the unsent message in the Outbox, manually editing the file, then re-sending. When I removed the header or changed it to something that's not an address, it was sent. I don't know how this issue applies to other Exchange versions, or when using non-NTLM authentication.
Thanks for a bug report. Your investigation is correct. This had been fixed within bug #664749, thus I'm marking this as a duplicate of it. *** This bug has been marked as a duplicate of bug 664749 ***