You could do it if you want to appear as more of a douche looking to brown nose, rather than a co-worker helping a co-worker.
Personally, I think the favor you're doing to your friend in somewhat secret is greater than doing the favor but making it public. A stronger working relationship with your co-worker is better than a little sucking up to the boss.
Indeed. If you're managing 10 people, the last thing you want is 10 people sending you a bunch of random shit you don't care about.this
If I was your boss and I got copied on that, I would reply all asking why you sent it to me.
Does the email contain info the boss needs to know ASAP? If so, go ahead and CC. If not, don't bother.
Personally, I think the favor you're doing to your friend in somewhat secret is greater than doing the favor but making it public. A stronger working relationship with your co-worker is better than a little sucking up to the boss.
I'd just casually mention it in the next 1:1 with your boss when he asks what's been going on in the last week. No need to make a big deal, but no reason not to make yourself look good too. I wouldn't do it where it's obvious to your co-worker, tho.
Personally, I think the favor you're doing to your friend in somewhat secret is greater than doing the favor but making it public. A stronger working relationship with your co-worker is better than a little sucking up to the boss.