send email as someone else, not on behalf

I want to send an email as my boss (john). I look in the emc 2010 under his name (john) and I see that my name is in the "manage send as permission".

I go to outlook, change the from to his name (john), try to send an email and it tells me "you do not have the permission to send the message on behalf of the specified user". my name isn't under the SEND ON BEHALF (mail message flow > delivery options )
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Scott CSenior EngineerCommented:
You need to be assigned permission before this will work.

Manage Send As Permissions for a Mailbox

Use the EMC to manage Send As permissions for a mailbox

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "Send As permissions" entry in the Mailbox Permissions topic.

1.In the console tree, click Recipient Configuration.

2.In the result pane, select a recipient. You can manage Send As permission for the following recipient types:

◦Discovery mailboxes

◦User mailboxes

◦Resource mailboxes

3.In the action pane, click Manage Send As Permission.

4.On the Manage Send As Permission page, select the users or groups to which you want to grant the Send As permission or from which you want to remove the permission.

◦ Add   Click this button to open the Select User or Group dialog box. Use this dialog box to select the users or groups to which you want to grant the Send As permission.

◦ Remove icon   Select a user or group, and then click this button to remove the Send As permission from that user or group.

5.On the Completion page, review the following, and then click Finish to close the wizard:

◦A status of Completed indicates that the wizard completed the task successfully.

◦A status of Failed indicates that the task wasn't completed. If the task fails, review the summary for an explanation, and then click Back to make any configuration changes.

6.Click Finish close the wizard.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
AmitIT ArchitectCommented:
Just download offline address books and send again. let me know, if that doesn't work.
Will SzymkowskiSenior Solution ArchitectCommented:
Send As permission is an AD specific permission. If you have set this permission and AD replication has not happened yet the changes will not be present. Wait for replication and if after 15 minutes it still does not work, i would check your AD replication using the following command.

Repadmin /replsum
Repadmin /showrepl
Repadmin /bridgeheads
DCdiag /v

Another good way to test this is to remove cached mode from Outlook (online mode). Sometimes when Outlook clients are using cached mode the permissions do not propegate right away to the client.

IMHO, you should stick to emailing on behalf of rather than as the person. It is one thing to email as a distribution/shared mailbox, it is a completely different story of mailing using a specific user's email address ..........
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.