Inbox Institute News - Inbox Marketer
Jan 5, 2012 ... We looked at 5,000 North American email campaigns executed in Q1 2011 with a minimum size of 100,000 messages. The campaigns covered a cross-section of business-to-consumer sectors, including retail, manufacturing and services. The overall average open rate of the sample was 20%, and there ...
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Inbox Institute News - Inbox Marketer's website is jyyt.com.tw