Optimize the message size
Updated on April 21, 2025
Why?
The weight of your message is crucial to the success of your email campaign. Indeed, a message that is too heavy will have the following effects:
- significantly slow down your sending process
- increase the time it takes for your recipients to receive the email (which can lead to potential irritation!)
- increase the likelihood of your email being classified as spam
- reduce the quality of the open rate statistics in tracking (see this article)
For all these reasons, it is highly recommended to minimize the weight of your message.
In 95% of cases, a significant weight is due to images included in the email. These local images must be added to the email to be visible to your recipients. The solution to reduce the size of your message is to transfer your local images from your PC to a website. Since the image is hosted on a website, it does not need to be included in the email as all recipients have access to it. Notice that it is not for nothing that all major online retailers send you messages with hosted images (check your inbox!).
How?
It’s very simple: when local images are detected, OxiMailing informs you via this button in the “Message” section:
Simply click on it, OxiMailing takes care of everything.
Once the optimization is complete, your message remains the same while being significantly lighter!