Five tricks for crafting a high-performing email subject line.

We’ve been publishing new content every week since 2012. Do the math, that’s over 200 unique insights based on unique data sets. Every year we do a recap of the top posts, but those lists aren’t broken down by topic which is how most of you sort through our archive of charts and insights.

Rather than just add categories of all posts – good and bad – we’re handpicking collections of the top posts around specific themes. Today’s topic is creating the perfect email subject line. Enjoy.

Most punctuation has no influence on open rates, except for one…sorta.
Punctuation marks. Sometimes we get excited and use multiples, other times we make it a question. But overall, when looking across…
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Which use of the dollar sign sees better performance for resorts?
When we compared dollar amounts versus percentages, dollars won by a pretty hefty margin. But with multiple ways to use a dollar…
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Should You Capitalize Email Subject Lines? Or should they read like sentences?
Sometimes with the Stash we try to dig deep and uncover hidden ideas. But other times we just want answers to simple, common questions…
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Does capitalizing one IMPORTANT word increase email open rates?
Today the point of analysis is whether capitalizing one important word in your subject line will increase the open rate of that campaign…
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Are mobile devices rewarding shorter subject lines with higher open rates?
Over two years ago we compared a subject line’s length to its open rate and found a very clear trend: shorter gets more opens…
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BONUS: Subject Line Open Rate Predictor
This tool is uses 8 years of hospitality emails to predict how well a subject line might perform on a marketing email…
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We’ll be back with a new hospitality-specific marketing insight next week. Don’t want to miss it? Stick your email below.