stop postfix on U14.04?

[Dave Stevens]

I want to stop postfix on my U14.04 system. I can "sudo service  
postfix stop" and that works fine. But a problem is that AC power is  
flaky. I'm working on that separately but in the meantime postfix  
restarts when power cycles. I've looked for and found ways to remove  
postfix but that's overkill - all I want is to prevent it from running  
even through power cycles until explicitly restarted.

Can anyone refer me to a man page or tutorial on that?

TIA!

Dave


-- 
"As long as politics is the shadow cast on society by big business,
the attenuation of the shadow will not change the substance."

-- John Dewey