An email that is rejected by an email server for a permanent reason. An email may hard bounce if a recipient email address or domain name doesn’t exist—or the recipient email server has completely blocked the delivery. There are, however, occasionally times when a valid email address will hard bounce.
Building Your Business with an Opt-in List
Before revealing the secrets of the trades, here are myths and fallacies that need to be cleared before one indulges into building an opt-in list.
