Sender Score
Definition
Sender Score is a reputation score assigned to the IP address from which your emails are sent. It’s a key metric used by email service providers to determine whether your emails should be delivered to recipients' inboxes, marked as spam, or blocked entirely. Scores range from 0 to 100, with higher scores indicating better email sender reputation.
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Translation
The email world’s credit score—if it’s too low, your emails might never see the light of someone’s inbox, and if it’s high, you’re golden.