Email Copy Subject Lines and Preheaders

Question 1

What is the primary purpose of an email subject line?

Accepted Answer

To compel the recipient to open the email

Answer

The subject line's primary job is to generate enough curiosity or value to make the recipient open the email.

Question 2

What is the recommended maximum character length for a mobile-optimized subject line?

Accepted Answer

40–50 characters

Answer

40–50 characters ensures the subject line displays fully on most mobile screens without being cut off.

Question 3

Which subject line technique uses a partial sentence to create curiosity?

Accepted Answer

Open loop

Answer

An open loop leaves the subject line unresolved, compelling readers to open the email to complete the thought.

Question 4

What is a preheader in email marketing?

Accepted Answer

The preview text that appears after the subject line in the inbox

Answer

The preheader is preview text shown in the inbox alongside the subject line, offering a second chance to entice the open.

Question 5

Which of the following subject line elements is most likely to trigger spam filters?

Accepted Answer

ALL CAPS and excessive exclamation marks!!!

Answer

Excessive capitalization and multiple exclamation points are classic spam trigger patterns that hurt deliverability.

Email Copy Practice Test