I have set up an email account on Exchange 2003. I have given 6 users full permissions to the mailbox. Exchange Advanced tab. Mailbox Rights Tab, check "Full Mailbox Access"
Then this mailbox was associated to their Outlook profile (Outlook 2007, Vista). They can open the mailbox and view the mail but they cannot send an email from that account. Meaning, if they put the newly created mailbox name in the "From" field and try to email anybody internally or externally they get the following error message:
You do not have permission to send to this recipient. For assistance, contact your system administrator.
I do not want to use Send on Behalf feature as the person's name will show. I have adding myself with full permission and I am able to send without issue (granted I am a domain admin). I have also tried giving the user (delete mailbox storage, Read permissions, change permissions and take ownership) without any success.
Is there something I should be looking for here?