[gentoo-user] mailing list problem?

[Jack]

I've recently gotten a few of my usual "Bouncing messages" messages  
from the mailing list, but when I go to the archives to see if I can  
identify the problematic messages, I don't see anything since the  
middle of March.  I've filed a bug (https://bugs.gentoo.org/903753) a  
few days ago, but no response yet.

Any thoughts or suggestions?
Thanks.

Jack