Originally Posted by
xyzzy
It depends on what you redeem. If you redeem CO miles you should not receive any miles for those flights. If you redeem miles from Amex Membership Rewards, etc. where that program essentially buys a ticket on CO (or some other airline) you generally do earn miles.
I think that's what the OP is asking. Well, ask that card or whatever entity what CO fare class they book into, and check if it's a mile-earning one then.