This is what I am trying to do:
1. First User is in AD and Exchange (Name and Display Name: User, Email Address firstname.lastname@example.org)
2. When first user sends an email using his account the sender shows up as "User", which normal and the way it should be.
3. There is a second user who occasionally has to send email as the first User, but in these cases the email sender must show "User2" eventhough the email address stays the same email@example.com !
The way we are trying to achieve this to have User #2 send using POP/SMTP using User #1's account and set "User2" as the sender name in Outlook.
This works fine as far as the external recepients go (they see User2 as the sender and firstname.lastname@example.org as the email address).
The problem is the for internal users Exchange automatically resolves the sender name to the user name found in GAL which is "User"
I know that for Anon senders Exchange 2007 will not try to resolve email addresses to the GAL sender for security reasons.
What security setting would I have to set on the Client receive connector so when an exchange user (non anon!) send an email using SMTP then the sender's name would NOT be resolved internally...