I have yet to see a recovery work where the wayward spouse was still in regular contact with their affair partner. I'd be a fool to encourage him to do anything BUT insist upon no contact.
I also ask people what THEIR boundaries are, as I think they are very personal and we're in no position to decide FOR them what they should be. He has said that no contact was a dealbreaker for him, and I tend to agree.
I haven't said she's still having an affair. I've said that her attitude toward no-contact and transparency indicates to me that she is EITHER still involved with this man, or -- and I said this was more likely -- she WANTS to be able to be.