2 highest-opened cold email subject lines. One of them shows 86.6% open rate.

Have you ever experienced 86.6% organic reach on any social network?

Neither me!

But it can be done via email.

An experiment with cold emails and saw over 50% open rate (= organic reach = for free).

The champion subject line was “Invitation for NAME”

Here are a couple of interesting experiments with cold email subject lines by other companies.

So here are the highest-opened cold email subject lines:

  1. by Sumo: “hey NAME, quick question”
  2. by LeadGenius (86.6% open rate): “I Found You Through CONTACT NAME”

Looks like these subjects can bring you a bunch of new leads for free. 🙂

Source: https://sumo.com/stories/cold-email-templates

Scroll to Top