250ok tracks all of the signals critical to your email program. No more depreciated certifications, services blackholes, or insufficient data. Discover insights that drive world-class email performance.
Some common questions Postmasters field from senders are, “What happens to all the Postmaster tickets we submit? Does anyone look at them? What’s even going on there?” Before coming to 250ok, I worked as an AOL Postmaster. So in short, I know some stuff, and I’m happy to share what I can. So, we could […]
If you’ve read our Deliverability Guide, you already have some understanding of what spam traps are and how they operate. A collection of these is called a spam trap network. Similarly, we also touch upon sensor networks in our guide. Even to a seasoned email marketer, these concepts can become confusing. We’re not down with […]
We can’t really finish a conversation about DNS, subdomains, and IP addresses without naturally progressing into email authentication. Why? Authentication is made up of all of these topics and a little more. It’s a nice building block in the tower of responsible email marketing. In the early, Wild-West days of email marketing in the early […]