UPDATE: As of this morning (9/12) IP reputation data appears to be displaying correctly and domain reputation data is being provided.
If you’ve checked Google Postmaster Tools lately, don’t freak out just yet about your IP reputation. As first reported by Word to the Wise, the IP reputation metrics appear to be broken at the moment, displaying a “Bad” reputation for all IP addresses since 9/9. I’ve seen this in my own Postmaster Tools account, along with a lack of data for domain reputation since 9/8. Authentication and Encryption metrics appear to be working correctly for me, but I can’t say for sure whether the Spam Rate, Feedback Loop, or Delivery Errors charts are correct – they all show zero since 9/8, but that’s not uncommon in my experience.
Like Laura, I’ve not seen any delivery problems associated with the change in metrics, with bounce and open rates at Gmail pretty consistent based on a few spot checks.
As of yet there doesn’t appear to be an official confirmation from Gmail, but clearly something is hosed with their data. Is it possible this is tied to the Postmaster Tools updates that were promised a few months back? I’d say it’s unlikely…but a guy can hope, right?