Emails without an offer in the subject line do better says study

Emailing new prospects, educate them, don't sell to them. Give offers to existing customers is my takeaway from this new study. 

Yes Lifecycle Marketing (a provider of multi-channel marketing services provider) analyzed nearly 8 billion emails to determine if subject line offers in emails work.

Findings:

1. 30% of all emails analyzed had an offer in the subject-line
2. Open rates for emails without an offer were on an average 28% higher
3.  Exception - emails to  customers (loyalty marketing). According to Media Post Research -  "Emails with offers related to loyalty boasted a 9% higher open rate, 20% higher click rate, and 12% higher click-to-open rate compared to campaigns with no offers"