Ask HN: Anyone notice an increase in unsecure email unsubscribe links?

Lately I have noticed that when I scroll to the bottom of an email and click unsubscribe, I pass through an "unsecure" (non HTTPS) server first and my browser prompts me to continue because it's potentially dangerous. Once I go through the one to two clicks to "proceed" I am rerouted to something that has a branded domain name and a valid cert.

Other links on the emails I have tested do not go through this insecure route first, just the unsubscribe links.