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USE CASE Target

Fix Outlook Background Image Collapse in iOS Mail (Apple) — ActiveCampaign Guide for Transactional & System Notifications

Transactional emails (receipts, password resets, shipping alerts) carry critical operational data. Spacing collapses or broken buttons can block users from completing essential user journeys. Below is the targeted integration guide to fix Outlook Background Image Collapse inside iOS Mail (Apple) templates when using ActiveCampaign.

Technical Breakdown

iOS Mail (Apple) uses the WebKit Mobile which lacks support for standard rendering rules. This causes Outlook Background Image Collapse elements to break or collapse when rendering templates.

ActiveCampaign Behaviors

ActiveCampaign's editor parses HTML template imports and automatically cleans inline attributes, which can break VML tags. Always use absolute styles and avoid relying on classes. Because system notifications are triggered frequently, ensure your CSS rules are completely inlined to guarantee readability in high-volume, automated delivery queues.

Remediation Code Block

To resolve this in Outlook desktop, you must wrap your element or cell inside a Microsoft VML (Vector Markup Language) shapes structure that declares the background image explicitly using the 'v:background' or 'v:fill' vector properties. In your ActiveCampaign campaign manager, make sure you configure your links to run via %UNSUBSCRIBELINK%.

<td background="https://example.com/bg.jpg" bgcolor="#222222" valign="top" style="background-image: url('https://example.com/bg.jpg'); background-repeat: no-repeat; background-size: cover;">
  <!--[if mso]>
  <v:rect xmlns:v="urn:schemas-microsoft-com:vml" fill="true" stroke="false" style="width:600px;height:300px;">
    <v:fill type="tile" src="https://example.com/bg.jpg" color="#222222" />
    <v:textbox inset="0,0,0,0">
  <![endif]-->
  <div>Overlay Content</div>
  <!--[if mso]>
    </v:textbox>
  </v:rect>
  <![endif]-->
</td>

Live Code Sandbox Test

Interactive ActiveCampaign Custom Sandbox

Target Environment: iOS Mail (Apple)

How to Deploy inside ActiveCampaign

1

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

2

Insert an 'HTML block' from the layout builder panels. Avoid standard text boxes, as the ActiveCampaign parser might strip conditional MSO comment strings on saving.

Targeted Fixes by Use Case & Industry