I realize this is a known issue and there are lots of posts about it here and on the net. This is a slightly different take and am hoping to find a work around while waiting for Microsoft to fix this glaring bug.
Outlook 2010 (finally) allows you to open multiple Exchange accounts. The (documented)problem is that Outlook can ONLY remember the credentials of the last Exchange account that logged on. Soooo, if you have, say, 3 Exchange mailboxes that you use, you'll be prompted for credentials on 2 of the 3 mailboxes EVERYTIME you start Outlook. Very annoying - imagine if you had 7 or 8 mailboxes (as some of my clients do). That makes this wonderful new feature utterly useless.
I tried to fix this by granting the main Exchange account (the first one setup and the default reply account) Full Access permissions on the other 2 mailboxes. Worked great! No prompts for passwords.
Whenever you try and send an email using one of the other accounts, the mail gets returned saying you are not allowed to send on behalf of the other user. Kinda makes sense from the credential point of view. I tried to no avail to give send as permissions on the other mailboxes, but the only thing that worked was to remove the full access permissions and go back to the multiple password prompts.
Any ideas on how to workaround this? It's a big problem for several of my clients. Also, anyone know of a way to get the attention of some uppity-ups at Microsoft's Outlook group to let them know what a huge problem this is?
Thanks to all!