I don't know if this is what your having issues with, but I have been told by a few people I've meet that they replied to some of my posts and I never received their emails. I always have a few posts up and they would reply to one I would get it and we worked out a deal and they replied to another one not knowing it was me also. The email from a different post I never got. After talking with them they would realize it was me and they told me. It is always random also never the same post not forwarding emails.