Can missionaries receive email?

A while ago, I confessed to a missionary that I had developed feelings for him. He gave me his Facebook account, and I asked if we could talk after he finished his mission. He said yes.

About seven months after he was transferred to another area, I sent him an email. It's been about five weeks now, and I still haven't received a reply.

Do you think he no longer has feelings for me, or is it possible that he just can't respond?