Whether it's one type of email or multiple, the frustration is the same. And you've tested everything to make sure your campaigns are delivered optimally.
But did you know that you can also test the HTML code of your email? It's often the forgotten part of the checklist before sending an email... And yet, this little check can help you avoid many pitfalls.
Once again, we're happy to show you the best ways to ensure your email is fully displayed. And there are some very simple tools that will help you achieve this...
2 main points to check in the HTML code of the email before sending it:
1. Check that the HTML code of the email does not contain errors
Behind dreamy offers and CTAs that would make even the most overseas chinese in usa data reluctant of prospects click, there are dozens of lines of code. And it’s not uncommon for a mistake to have crept in between them. A poorly closed HTML tag , the use of unsupported tags , a developer making mistakes… These are all elements (often tied to tags, as you may have noticed) that can have a direct impact on the display of your creatives.
Not to mention that some bugs can have a catastrophic impact for some messaging providers but will be invisible with others or in certain web browsers...
Practical case of a simple unclosed html tag
To help you check your email's HTML code, here are some tools that are as easy to use as they are effective:
This initial check is the first step towards optimal display of your email. But are you sure that the integration method you use is suitable for the way Internet users consult your website?
2. Mobile Viewing: Has your email been integrated for this device?
Today, more than half of emails are viewed on mobile devices. So it's vital to take responsive email adaptability into account ! You have a dream offer, a base of crazy clickers, and yet you've managed the integration issue poorly, which is half of the design of a good responsive email!

So don't forget to incorporate this limitation into your campaign design: a simple email structure usually offers optimal readability of the HTML code on all screens .
To test your designs across devices, we recommend using one of these two services:
https://www.emailonacid.com
https://litmus.com/
These services will also allow you to test your campaigns with most email providers which, by interpreting the HTML code of the email, can vary the way it is displayed.
Conditional display of elements based on the device shows that certain integration methods are not understood in the same way by all messaging systems. When some providers do not decode certain elements, they can display the email in two versions, one after the other!