[amsat-bb] email not getting back to me

I know my email is being sent through ,because Im using wa4hfn@comcast.net to send to amsat-bb@amsat.org the problem I am having is I am not receiving any emails back to the Gmail account that I have set up for the BB to reply back to me . This is the second time this has happened in 4 months. I have had it,to much wastes time with the bb WA4HFN Damon