How to Spot a Bad Email List and Turn It Into a Good One
Hubspot
MAY 29, 2014
Your deliverability and sender score reputation will decline. According to the 2014 Science of Email report , The most common responses to unwanted email are, in order: 1) ignore or delete, 2) unsubscribe, and 3) mark as spam. This can happen when someone has an auto-responder set or their inbox is full.
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