60% open rate for sales emails
This company sold air conditioners and also sent daily weather forecasts by email and text.
They sent sales emails asking people to buy an air conditioner only when the temperature crossed 75°F (24°C).
Reported results: 60% of those emails and close to 90% of the text messages were opened.
The idea is contextual timing: sell when the message matches what the subscriber is already experiencing.
Source: Neil Patel — optimize ecommerce for mobile