The term "whitelisting" (or "safe senders list") refers to telling your email software that the email from a given sender is not spam. If, like most people, your email system includes spam filtering then whitelisting is the only way to guarantee that none of the emails from a given sender will be filtered as spam.
It is a common misconception that if one email from a given sender makes it through a spam filter that all will. That is often not the case.
To see how to whitelist a sender, please refer to this external page (not related to ChangeDetection.com):
All of our emails are sent from the domains "changedetection.com" and "alert.changedetection.com".
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