Similarly, it could have been 3-4 consecutive newsletters with particularly low engagement that put him across some threshold. Not people marking as spam, just

Similarly, it could have been 3-4 consecutive newsletters with particularly low engagement that put him across some threshold. Not people marking as spam, just not opening or opening and quickly deleting. Personally, I can't remember the last time gmail marked anything important spam. Maybe a newsletter whose absence I hadn't even noticed, but nothing actually important to me. I just wish I could get gmail spam filtering on my cell phone. Robocalls are out of control -- 4-5 / day. (I've looked at some of the apps / subscriptions for this, but I'm not ready to give a relatively unknown 3rd party access to my contacts or to adding contacts, which they generally require.)