The Most Important Metrics That Affect Sender Reputation Message is read – A positive indicator that the recipient wants to receive your emails. Message is replied to – A positive indicator that the message is desired and presents a personal interest to the recipient. Message is forwarded – A positive indicator that the recipient finds the message valuable and thinks that others should see it too. Message is marked as ‘not spam’ – A very strong positive indicator that email providers use to train their spam filters. Message is moved to a folder – An indication that the recipient wants your
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