直接問他

如果你覺得那些問題該問，那你可以回：

Sorry I have to bother you again, I am a little confused by your answer above. Are you the right person for my questions?If not, could you let me know who is the right POC? Or do you have a mailing list for this kind of questions?

你的問題如果問的太細小，也許他說的是還有其他人可以問，不必問他，他已經有很多人問他關於更大的項目的問題。