The scenario of my problem:
1 x MS server 2003 Small business edition
4 x user accounts
4 x client PC's all running Windows XP, all networked locally
Exchange on the server distributes emails
Out of the 4 users, one user (we'll call her 'admin') wants to have the ability to send from the other 3 users (we'll call them 'partners') email accounts.
Admin currently has the 3 partners inbox's on her main view in outlook, and can see their entire mailbox folders. When admin, hits 'reply' to an email in one of the partner's inboxes, the reply goes out with the 'from' field in outlook displaying the appropriate partner's name. However, this only works for 2 out of the 3 partners, the 3rd gets an insufficient access rights error.
Now here's the problem,
All 3 partners are in the same security groups - none of their settings are different, as far as I can see. I have created a security group called 'mailbox access' and added admin to this group. I have then added the group mailbox access to the security list for mailbox store, under exchange. I've given this group 'send as' allow permissions. I've also added this group to the security tab under advanced features on AD for the 'domain users' entry, and given this group allow permissions for 'send as'
I must be missing a setting to do with the account of the 3rd partner, who's admin cannot send mail out as, but I can't find it anywhere - can anyone help?