Sending mail outside based on the FROM address

[konddor]

Dear All,

Exim running as:
queue all mail, and then run a mail queue flushing process every 10 minutes, all working good

now i have a request sending out message only FROM specific user without queuing
for instance: when [e-mail] will send outside email exim will deliver it immediately, but all other emails will go to queue for 10 minutes.

i found Exim is powelfull and i want to use it as my Email Gateway.
Thanks in advance for your help!!

konddor