Some more stats - looks like this primarily happens for these three email service providers.
@qq.com 516 @foxmail.com 32 @vip.qq.com 6
It happened to me too. After sending out a test email through Marketo (to my @qq.com mailbox), I just opened it but didn't click any links, while later the report shows it was clicked. Not sure if the Open number in report is accurate when contains @qq.com emails since I opened it too soon.
Marketo will probably figure out a way to adjust for this. I've heard of corporate IT filters that will auto-open and "click" all links for spam checking before, but never a major email provider.
Was about to post the same find. We're seeing the same thing. Click rates of about 52% when we send to China, so we're now separating out our China email sends from everything else so that our stats aren't affected...
Would it be possible connect offline on this issue or via email?
We recently experienced this too and need help with diagnostic reporting in Marketo to hone in on the issue and decide what to do about all the emails with qq.com domain. Would greatly appreciate your help.