In the past week or so, I have been getting quite a bit of spam in my Gmail account. It's not image spam, it's stock spam.
I blogged a few months ago that Gmail was allowing lots of spam through (no pun intended) but that may have been because an email account that I never use anymore was set to forward to Gmail. It's possible that spam from that account was what was getting to my Gmail inbox. If so, that email spam filtering service totally sucks. Anyways, I turned it off going to Gmail and things were great for a while.
But this week I've been seeing plenty of stock spam. In fact, most of the spam getting through to Gmail is of the text spam variety. I read a couple of weeks ago Gmail's spam filtering is based upon an extensive sender reputation network (more or less). I guess spammers are starting to figure out ways around them, probably by spreading their botnets a lot wider and a lot thinner, ie, sending fewer messages per bot. If so, then I guess Gmail is going to have to evolve just like the rest of us anti-spam companies have been forced to do.