Subject Line Length Means Absolutely Nothing

by , Sep 18, 2012, 5:15 PM
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MailChimp analyzed the subject lines of 12 billion (not a typo) messages to get to the bottom of the subject line length debate. The data indicates that as subject line length increases, nothing happens to open rate performance. 

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2 comments on "Subject Line Length Means Absolutely Nothing".

  1. Robyn Showers from Intermarkets
    commented on: September 19, 2012 at 2:37 p.m.
    Does this also apply to mobile open rates?
  2. Charles Balazs from Washington Post Digital
    commented on: September 22, 2012 at 10:46 p.m.
    It's very frustrating to click from the newsletter to this page and there's no link to the original article (in this case, on the MailChimp blog).

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