Discover how the SORBS blacklist work, the reasons why your IP got blacklisted, find out how to run the quick SORBS blacklist check, and explore preventive measures to avoid such an undesired fate.
Knowledge Base
Discover what comprehensive email productivity is (and what it isn’t), along with practical tips and AI tools that will help to bring your email to a new level!
Learn how Spamhaus PBL differs from other Spamhaus ZEN blacklists and how to get delisted in 4 simple steps if your IP hits the blacklist.
Learn what a spam gateway filter is, the mechanism behind it, benefits and limitations, as well as an overview of such popular filters as Barracuda Gateaway, SpamTitan, and Cisco Secure.
Get a sneak peek at how we reimagined the Folderly tool, adding brand-new features and improving the old ones. Learn why Folderly 2.0 can become your one-stop email deliverability solution.
Is your URL listed on the SURBL blacklist? Here’s everything you need to know about the SURBL blacklist, along with the simple delisting instructions.
Is the combination of letters DKIM new to you? Then Folderly blog is what you need. Learn how to skyrocket email deliverability with a proper DKIM test and setup.
Clearing Your IP from the SpamCop Blacklist isn't rocket science. Follow this guide either as an end-user or system administrator to clear your road to email deliverability.
While there's no one-click way to run a thorough email domain health check, there's a reliable strategy for checking all six key components of a domain's health. Discover it in our article.
Don't let Barracuda blacklist hold your emails back. Follow our step-by-step guide and visual walkthrough for quick and effective blacklist removal.
Deeper email marketing personalization strategies can lead to a 50% increase (and more) in reply rates. Discover what works in 2023 based on Folderly research.