Solved! Go to Solution.
Hey Jon: Jumping in here too. I'm going to check with a few folks on the Marketo Deliverability Team to get the legal side of this, but my "best practice" take is I would just let them be. Legal stuff aside, if they opted out, they didn't want to hear from you for some reason. While it may have been b/c the content was not super-relevant, just b/c YOU think the content is now more relevant is not a reason enough to message to those who previously opted-out.
In summary: I'd cut your losses and move on.
On a side note, I'd LOVE to see your new email prefs center!