Unfortunately it looks like we've caught the eye of another spam filtering agency. Friday's SFChronicle.com newsletter had a lot of problems being delivered. Reviewing the delivery data, the re-delivery verification, new start verification, vacation re-start verification, and in-grace warning emails were also affected on Friday. The block must have started after the e-edition emails went out on Friday morning. The block does not seem to have affected this morning's e-edition emails. Until we know for sure that the block has been lifted, we are going to assume that delivery rates will be poor for most emails over the next day or two. Our sincere apologies for any inconvenience this may cause. We know that the daily e-edition email is very important to many of you, so we're hoping it's not impacted. While on the subject, if you're getting emails from us and want them to stop, reporting the emails as spam is NOT the proper solution. We provide opt-out links in the emails, a set of email preference on our Subscriber Services site (on the "Your Profile" page), and you can contact Customer Service to request to be added to the Do Not Email list. Finally, we want to point out that we're working on logic to suppress email addresses for subscribers that are quite simply ignoring the emails we send. We haven't settled on the exact rules for that (how many emails delivered? How many days without opening one?), but I'll post here again to explain what we do. In the meantime, if you're afraid of being dropped from a given list/campaign/type of email, open one up if it was sent within the last 14 days.