Jamie,
If a user moves a message from SPAM or to INBOX, that user will see that change moving forward. It’s the upstreams that take a while.
In regards to Zoom specifically, SpamFoo implemented an entirely new reputation system for domains and IP's which will resolve issues like Zoom ever being shown as spam again unless Zoom was an open relay for a while, and then SpamFoo would start to slowly untrust it. From the sounds of it, this will be coming this week or next.
From our tech meetings with them, it seems their mentality was to allow users to define the model (primarily), but because people still move Zoom emails to SPAM (when they do mass emails), it had a tendency to affect valid emails from Zoom-type companies. With the reputation system, they are basically setting specific companies at certain trust levels while still allowing users to shape the model. Moving to Spam on companies with certain trust levels will go slower or faster.
SpamFoo is a new business and technology, and that’s why we have been taking it slowly with them and why they have agreed to the BETA. Your input and our input have been priceless, and this new reputation system in my mind is likely the final thing I believe they really needed.
For us, SPAM was so bad even with numerous SPAM solutions enabled, we didn't mind some additional training with SpamFoo to get to the level of success we are seeing today.
Many of the users on here didn't see it that way. Because of that, we have been working very closely with SpamFoo, and it has evolved very quickly. Within a couple of weeks, users should have an even better baseline, and then training will require less. And, the nice thing about any training users have already done still applies. It is a slick technology actually solving the problem of SPAM, especially how we integrated it into SmarterMail.