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INDUSTRY Target

Outlook Email Broken Layout Fix: Resolve Custom Font Fallback Overrides for Retail & Consumer Brand Campaigns

Retail campaigns rely on high-fidelity visual assets, coupon borders, and clear promotional layouts. Default image blocking or button collapses disrupt the visual journey. Below is the targeted integration guide to fix Custom Font Fallback Overrides inside Outlook App (iOS & Android) templates when using HubSpot.

Technical Breakdown

Outlook App (iOS & Android) uses the WebKit / Blink Wrapper which lacks support for standard rendering rules. This causes Custom Font Fallback Overrides elements to break or collapse when rendering templates.

HubSpot Behaviors

HubSpot's COS template manager automatically wraps content blocks in dynamic div structures to support their drag-and-drop system. These extra wrappers force styling inheritances that override inline td paddings, leading to spacing collapses in Outlook. Setting explicit table element attributes is crucial. Always define ALT descriptions for retail product shots, and base64-encode your brand logo so the email headers render cleanly even when images are blocked.

Remediation Code Block

To prevent Outlook's Times New Roman fallback override, wrap your custom font declarations inside an @media block that Outlook ignores, or use MSO conditional statements to override font-families specifically for Microsoft Word rendering engines. In your HubSpot campaign manager, make sure you configure your links to run via {{ unsubscribe_link }}.

<!--[if mso]>
<style type="text/css">
  body, table, td { font-family: Arial, sans-serif !important; }
</style>
<![endif]-->
<style>
  @import url('https://fonts.googleapis.com/css2?family=Montserrat&display=swap');
</style>

Live Code Sandbox Test

Interactive HubSpot Custom Sandbox

Target Environment: Outlook App (iOS & Android)

How to Deploy inside HubSpot

1

Copy the fixed VML or table wrapper code block from the remediation box above.

2

In HubSpot's Design Manager, edit the modules section. Create a 'Rich Text' or 'HTML' module block. Double-click the block, choose 'Tools' or 'Advanced', click 'Source Code', and drop the code snippet inside.

Targeted Fixes by Use Case & Industry