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What is an Opened Email?

This article describes opens and how to optimize the open rate.

Updated this week

What is an Opened Email?

An opened email refers to an email that the recipient has viewed in its HTML format, meaning the images or tracking pixel in the email were loaded. This is how APSIS Pro and most email systems measure opens.


​Important details:

  • If the recipient opens the email in plain text or does not download images, it may not count as opened.

  • If the recipient clicks a link, the email is also considered opened, even if images were not displayed.
    ​


Email Open Rate Optimization

Understanding the factors that influence an email recipient's decision to open your email can significantly improve your open rate. This tutorial will guide you through the key elements that can impact your email open rate and how to optimise them effectively.

The First Impression

The first impression of your email in the recipient's inbox is crucial. This is determined by the sender name, the subject line, and the pre-header. To improve your open rate, it is essential to pay attention to these elements.


Optimising Sending Day and Time

Consider if your sending day and time could be more suitable for your recipient. The graphic report at the bottom provides useful insights into the activity time frame of your subscribers.

This report shows when your subscribers are most active during the day. The open and click graphs usually peak at the time the email was sent out. Look for additional peaks to identify other active hours for your subscribers. Experiment with different sending times and days to see if this improves your open rate.


Analysing Open Rate Trends

The trend report can help you understand if the open rate is particularly high or low during certain periods or sendings.


Crafting a Good Subject Line

A successful subject line invites further reading with a relevant approach and tone of voice. It should create curiosity and convey urgency. Keep it within 40 to 50 characters. When creating a good subject line have the following guidelines in mind:

  • Invite to further reading

  • Relevant approach and tone of voice

  • Create curiosity

  • Notion of urgency

  • 40-50 characters

Here are some examples of subject lines that invite further reading:

Trendy topics

"How social distancing effect PR"

Shared knowledge

"top 5 CRM tips to increase your revenue"

Trusted source

"Harvard researchers about emotional marketing"

Limited offers

"We usually dont do this, but today is an exception"

Warning

"4 out of 5 are doing this mistake, are you?"

Unexpected comparison

"Do you know what cats and marketers have in common?"


Optimising the Pre-header

In the inbox the subject line is followed by the pre-header. The pre-header is the first readable text in the email. If it is not filled out, strange characters from an image file may be displayed in the inbox. The sender name, subject line, and pre-header form the first impression, so use them wisely.


Key Takeaways to Increase Open Rate

To increase your open rate:

  • Find the best sending time for your subscribers.

  • Refine your appearance in the inbox.

  • Use the subject line and pre-header effectively.

  • Make your subscribers curious by considering what they want to read rather than what you want to say.

  • Aim for a subject line within 40 to 50 characters and a pre-header of around 85 to 100.

  • Test and follow up in the report, acknowledge your subscribers' preferences, and adjust accordingly.

  • Test again. With an agile approach, you will stay relevant to your subscribers.


Quick Summary

Improving your email open rate involves understanding your subscribers' behaviour, optimising your sending time, crafting compelling subject lines, and using pre-headers effectively. By following these steps, you can increase your open rate and stay relevant to your subscribers.

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