search for: minqueueag

I made a little file with a From:, To: and body. I execute the command cat file.txt | sendmail -t -O MinQueueAge=1m thinking that the message would try every minute to send instead of the default 30m. (if the initial attempt failed of course). This doesnt seem to have any effect? In the event I have an important email and I want it try perhaps every minute (1minute) to send the email how do I accomplish...