Hi Susan,

When sending email using the MAPI format, this relinquishes control of the email sending functionality to the email program (Outlook, etc). What email program is used at your site, Outlook Express or another?

When sending email by MAPI, often some sort of screen appears from the email program (ie Outlook) to ensure that the email is intended to be sent, as opposed to spam. You have to click OK to start sending the email and OK a second time when it completes. Perhaps this screen is hidden underneath some other window, and the program hasn't crashed but rather waiting for a user response to a screen the user can't see. Perhaps try alt-tabbing away from OE and back again to see if any other screens appear.

How do you send emails (Now or To the Queue)?

Because all other workstations are able to send email from Adagio successfully, the problem is likely how the email is configured on the server.