The Internet Engineering Task Force (IETF) document, RFC 3696, “Application Techniques for Checking and Transformation of Names” by John Klensin, gives several valid e-mail addresses that are rejected ...
About 30 percent of our email list at ZeroBounce went bad in 2021. Astonishing? Not when you consider the impact of the pandemic: millions of job losses and “The Great Resignation” have wreaked havoc ...
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