Is there a way to change the email capture plugin email?

I don't think so.

k. We'll just create an email forward account then. That way our customers don't have to type out lakjsdflajsdlfkjasdflkjasdlfkjasdlfkjasldfjalsdriu3098203984203948aiwdlfjasd;fljasdf.2l3iu2o34uasjf8302983048234ojalfkjalsdkjfoi23u8023894019i24jljsdalifjoai3u401848018401840184018.netsuite.com lol

Why not just add it as a BCC address?

The best way is to follow the documentation and setup an email alias.

I didn't know you could do that. Cool. The documentation I find just says a great way to do this is to set up an alias email but it doesn't say how lol