While some email providers truncate long emails, truncation only affects a very small percentage of our subscribers (those who are signed up to a large number of categories). We don’t have evidence that truncation has a significant effect on either Featured Deal or Ads performance.
It’s important to note that BookBub partners aren’t paying for readers who don’t see their promotions due to truncation. Our Featured Deal pricing model is based on the expected results for each category, not just the number of subscribers you reach, so any impact on those results from email truncation would be accounted for in our fees. For BookBub Ads, advertisers are only charged for images that load in a reader’s email.