+16% open rate (secret hack you don′t know)

Do subject lines matter for your open rates?

It’s obvious. Sure they do.

But, besides the subject line, mailing services also show a preview text
that is actually a bunch of text from the body of your email.

So, the preview text matters as much as the subject line!

Yasware decided to test shortening their preview.

Result: in all 3 cases the open rate increased by 16.5% … 33.3%!

The question is how they did this. 🙂

And this is where the “hacking” part starts.

Here’s a secret code you need to place in the beginning of your email
body (it will be hidden from the email body, but will be shown in the
preview):

16 open rate secret hack you don′t know

“‌  ” – are actually encoded white spaces.


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