Thanks Adam,

That's cleared it up a bit. So if I were to accept a guest post on my site, which for example has a DA of 17, from someone who is linking their article back to their site (DA of 70) I don't receive any link value?

That's a shame, I would have liked to benefit a bit more haha.

Thanks again,

Josh

I'm relatively new to link building and although this may be an obvious question I can't seem to find an answer anywhere even after searching Google.