Before You Start
Set your email width to exactly 600px in Knak
This is required to ensure your email is formatted correctly when sending with Outlook.
If you do not see this feature available in your account, reach out to Knak Support to enable the Download for Outlook feature.
Note: Outlook has limited support for HTML emails. For best results, use native integrations like Marketo, Eloqua, or Salesforce Marketing Cloud when possible.
Download Email for Outlook
Step 1: Download the HTML File
Open your email in the Knak builder
Click Publish → Downloads
Click Download HTML for Outlook
Step 2: Open the File in a Browser
Locate the downloaded file
Open it in:
Google Chrome
Microsoft Edge
Step 3: Copy the Email Content
Click anywhere inside the email preview
Select all content:
Press Ctrl + A (Windows)
Press Cmd + A (Mac)
Copy the content:
Press Ctrl + C (Windows)
Press Cmd + C (Mac)
Step 4: Paste into Outlook
Open Outlook
Create a new email
Click inside the email body
Paste the content:
Press Ctrl + V (Windows)
Press Cmd + V (Mac)
For Classic Outlook
Locate the paste options popup (bottom right)
Click the popup
Select Keep Source Formatting
For New Outlook
Locate the paste options popup (bottom left)
Click the popup
Select Keep Source Formatting
Set Default Paste Option (Optional)
Click the paste dropdown in the toolbar
Select Set Default Paste
Choose Keep Source Formatting
Step 5: Send Your Email
Add recipients
Add a subject line
Click Send
Troubleshooting
Please note, there are some limitations to using the Outlook download:
Email Width
Must be 600px wide
Other widths may break layout and cause rendering issues
Background Images
Not supported in Outlook download
Use a flat image with text embedded instead
Mobile Responsiveness
Media queries are not supported
Mobile users see the desktop version
The following settings will not work:
“Hide on mobile”
“Do not stack on mobile”
"Reverse Column Order on mobile"
Buttons
Rounded buttons display as square
Section Colors
Full-width section colors are not supported
Use body background color instead
Outlook Compatibility
Not supported in Outlook.com
Use desktop Outlook only
HTML Attachments
If you are sending the Outlook HTML as an attachment and notice unexpected or unreadable characters after sending, contact Knak Support. Ask to enable the Outlook Attachment Download feature for your account.
Preview Text
Hidden preview text is not supported
Add visible preheader text at the top of your email
Tips for New Outlook
Keep Designs Simple
Use fewer sections
Avoid complex layouts
Use a Single Section
Multiple sections may create gaps
Use nested sections instead
Alternative:
Use one background color to hide gaps
Need more help? Contact support via live chat within Knak using the chat bubble in the bottom right corner or email support@knak.com