I was recently chatting with a prospective business partner (UK) and in the email exchange, mentioned a potential activity I will be engaging in, let's say X, in relation to a previously discussed contract arrangement. I don't want to go into details here, but X was meant to address some of the concerns he had about the arrangement. I then described the motivation for X, call it Y, and asked for his thoughts on it. Overall, this was a very short mail.
In the part of the reply dedicated to this issue, he wrote:
"I take on board your thoughts on X and agree with you on Y".
I'm wondering how to interpret this. Am I being politely told that he's not really sold on X? I've never really encountered this phrase before and I'm wondering if it could be considered a euphemism for lack of interest?