Validity FBLs were offline; are back now

If you monitor ISP feedback loop complaints, you may have noticed that the level of spam complaints received was greatly reduced over the weekend, as it appears that the Validity-run Universal FBL system seems to have stopped sending feedback loop complaint reports at some point on Saturday.

Validity's Universal Feedback Loop (FBL) is a system that handles ISP feedback loop complaint processing and forwarding for more than two dozen mailbox providers.

I'm assuming that this likely afftected all of the FBLs managed by Validity, which includes: BlueTie, Comcast, COX, Fastmail, Italia Online, LiberoMail, Virgilio,, Liberty Global, UnityMedia, UPC, Locaweb,, OpenSRS, Rackspace,, SilverSky, Swisscom, Synacor, TIM, Telenet, Telenor, Telstra, Terra, UOL, Virgin Media, XS4ALL, Yandex, and Ziggo.

Validity appears to be in the process of restoring service as of Monday morning, March 21st and complaints appear to be flowing again. Spam reports could show a spike (temporary increase in volume) as Validity looks to backfill messages from the weekend.

The FBL management portal does not appear to have been affected.

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