Running trigger t-sql as the sa

How does one run the following command in the context of the sa account while logged in as themselves (not sa). The "SQL Authentication" user does not have access to master.

EXECUTE master.dbo.xp_sendmail @.recipients = 'hi@.hotmail.ca', @.subject = 'Script fired!', @.message = 'Hi'How does one run the following command in the context of the sa account while logged in as themselves (not sa). The "SQL Authentication" user does not have access to master.

EXECUTE master.dbo.xp_sendmail @.recipients = 'hi@.hotmail.ca', @.subject = 'Script fired!', @.message = 'Hi'

sql2k does not support runas. You have to wait for yukon.