empty messages from fedora users list.

[William Mattison]

Good morning,

Since March 08, I've received 11 messages from this list that appear empty, including
2 so far today.  I have received a few (less) not empty, none today and 3 yesterday. 
What's causing this problem, and how do I fix it?  My e-mail client is Thunderbird
52.5.2.

I will occasionally check the Fedora Hyperkitty for replies.

thanks,
Bill.