(off topic) Missing Digests

Question for the Administrators, I've noticed recently that I have
not been receiving all of the digests from the group. I did a little
research and found that for this month alone, I have received 47
digests, and did not receive 10. I'm showing Digests #1083 thru 1140
so far for the month of January, and I didn't get 1091, 1094, 1095,
1097, 1099, 1100, 1123, 1128, 1130 & 1139. Any ideas why these
digests would not be coming through?

John Elder
Penn State Tool & Die Corp.