Ever wonder why your emails suddenly hit the spam folder instead of the inbox?...
https://wiki-nest.win/index.php/What_is_a_Spam_Complaint_Rate_and_What_Number_is_Safe%3F
Ever wonder why your emails suddenly hit the spam folder instead of the inbox? It usually comes down to your domain reputation. If your spam complaint rate stays above 0.1%, mailbox providers start filtering you out automatically