For authentication emails and various other one-way communication applications often use no-reply@yourdomain.com. This comes across as unfriendly when compared to something like hello@yourdomain.com.
I know of the argument that we don't want to have lots of auto-reply emails or bounced emails sent to a real address, but isn't this just pretending something isn't a problem when it really is? Is there any real benefit to using a fake address?