I don't disagree with providing unique emails to various services, I just don't think that _randomstring_@your-domain.com is better than myspace@your-domain.com

I don't disagree with providing unique emails to various services, I just don't think that _randomstring_@your-domain.com is better than myspace@your-domain.com than. I actually think it's worse, since it's more difficult to identify when an email is coming from the wrong place. If I get an email to myspace@domain.com and it's not from MySpace, I know right away. That's not as immediately obvious if I get an email to a random string.