The Institute for Social Internet Public Policy. Certification.EQ. Most mailbox providers rely on certified email whitelists to help separate responsible senders from spammers.
Leading mailbox providers and filtering companies rely on our Certification program to identify the legitimate, reputable senders, and separate them from the legions of spammers. By joining our certified email whitelist, you will be participating in the largest and broadest whitelist in the email universe, covering more than two billion inboxes worldwide. The result? Program members receive up to a 40% lift in inbox placement rates, and numerous other benefits. Blacklist, Whitelist and FCrDNS check tool. Email Marketing Subject Line Comparison. New email marketers often ask us, “How should I write my subject lines so that more recipients will open my emails?”
In order to answer that question, we analyzed more than 40 million emails sent from customers through MailChimp, and singled out the ones with the highest and lowest open rates. Then we pulled 20 from each pile, and put their subject lines in a side-by-side comparison. The highest open rates were in the range of 60-87 percent, while the lowest performers fell in the dismal 1-14 percent range. Do you see a pattern below? Observations. Trusted Domain Project - About Us.