Marketing Index

Subject Line

What is a subject line?

The subject line is like a headline for your email. Its purpose is to help the recipient identify the content and intention of the email. The subject line is also the first thing a user sees when looking in their inbox and when they receive your email.

The subject line therefore plays a major role in your email marketing efforts, as it largely determines whether you achieve a good open rate.

So what makes a good subject line?

A good subject line is one that ensures the highest possible open rate. In broad terms, this means a subject line that grabs and interests the recipient, makes them want to open the email, and at the same time explains the content briefly and precisely.

What makes a good subject line therefore depends on your recipients and the individual email.

How to write great subject lines! 6 tips

As mentioned earlier, a good subject line depends on your customers and the individual email. The goal is always to ensure the highest possible open rate.

Below you will find some general tips you can follow when writing your subject lines to increase your CTR.

6 tips for subject lines that boost your open rate:

  1. Write short, simple and precise subject lines.
  2. Keep your subject lines to around 5–10 words so they don't get cut off.
  3. Use numbers, symbols and similar elements.
  4. Focus on sparking the recipient's interest (give a little, but not too much)
  5. Make the subject line personal.
  6. Write in an active voice.



If you would like specific and personalised advice, call us on tel. 30 12 42 72 and let's have a chat!