ton of files in <domainfolder>\mslocal\mshold\webefce\2

I have Groupwise 2014 SP2. I just noticed I have a ton of files in the <domainfolder>\mslocal\mshold\webefce\2 and the <domainfolder>\mslocal\mshold\webfd1e\2 I did some research and it looks like this folder is the Admin queue, at least I think. What are the files in this folder and can they be deleted?