Hello community,
we faced with an issue of proper diplaying of an email template. In some email clients the template is displayed with additinal gray frames around the columns, rows and cells. While in another, and inside Creatio in designer, it is displayed properly.
We are observing this issue with new and classic Outlook respectively. THe template is built in Classic UI. Did anybody face with the same situation?
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Hi Artem,
it might be that the Classic UI Designer for Bulk Emails (with Classic UI being deprecated) is not updated anymore, and that is what is causing the rendering issues, when Email Clients are changing?
see: How to Create Bulk Email Using Classic UI? | Community Creatio
10:22 Dec 19, 2025
Point of attention - we noticed that bulk emails generated in Classic UI do not always render properly anymore in certain client versions of Outlook etc... Code behind the email has improved with the new designer
Best,
David
Hello!
This behavior is typically related to differences in how various email clients render HTML email layouts, especially Microsoft Outlook clients.
Email templates created in Creatio Content Designer are generated as table-based HTML layouts. Different Outlook versions may interpret these structures differently:
- Classic Outlook for Windows uses the Microsoft Word rendering engine, which has limited CSS support and may display additional borders or gray frames around table cells and columns.
- New Outlook uses a different rendering engine, so the same template may appear correctly there.
Since the Creatio preview uses browser rendering, the template can display properly in the designer while appearing differently in Outlook clients.
As recommendations/workarounds, we suggest:
- reviewing the generated template in HTML mode;
- explicitly defining table and cell border styles (
border="0",border-collapse: collapse, inline CSS); - minimizing deeply nested table structures where possible;
- testing the template across multiple Outlook versions;
- using standard Content Designer blocks instead of externally imported/custom HTML when possible.
Additionally, if the issue concerns Bulk Email templates, we would recommend considering the newer Email Marketing application and Freedom UI email designer:
https://marketplace.creatio.com/app/email-marketing
The newer designer uses a more flexible and modern template architecture, which may simplify layout configuration and improve compatibility with modern email clients.
At the same time, it is important to note that some rendering inconsistencies may still occur because certain email clients — especially different Outlook versions — have their own HTML/CSS rendering limitations and behaviors.
We also recommend additionally testing templates specifically in the email clients that previously demonstrated rendering issues to validate the final appearance before production usage.