According to my back-of-napkin calculations (looking at the number of archived messages in the past month, averaging it per day, and multiplying by number of subscribers):

- vger.kernel.org delivers about 4.5 million messages per day
- 70% of that is linux-kernel@vger, with about 3.2 million messages delivered per day
- a very remote second is netdev@vger (300,000 messages delivered per day)
- even a more remote third is kvm@vger (133,000 messages delivered per day)

Current migration stats:

Out of the total of 203 public vger lists:

- 48 lists will be sunset (due to obsolescence/inactivity)
- 40 lists are already migrated to new infra
- 115 still reside on legacy infra

The 40 migrated lists are about 788,000 messages daily, or ~20% of all traffic, so 80% of all mail traffic is still going through the legacy infra.

I hope to complete all migrations by this holiday season.