Email Client Support

These are the email clients that builder emails support

Jack Steele avatar
Written by Jack Steele
Updated over a week ago

We regularly test these email clients using internal test tools and Email on Acid.

Fully supported

All the options work properly. Fallback fonts display where web fonts are not supported.

Apple Mail 13, 14, 15 & 16

Microsoft Outlook for Windows 2007, 2010, 2013, 2016, 2019, 2021, Microsoft 365*

Microsoft Outlook for Windows, Microsoft 365 “New Outlook”*

Outlook for Mac (Microsoft 365)**

Outlook for Mac 16 (Legacy Outlook)

  • Web fonts are not supported.

** Web fonts are no longer supported since version 16.79.3 (December 2023)


iOS Mail (iPhone & iPad)

Gmail App (iOS)*

Gmail App (Android 8, 9, 10, 11, 12 & 13)*

Outlook App (Android & iOS)*

Yahoo App (Android & iOS)*

Samsung Mail (Android 6, 7)*

  • Web fonts are not supported.



Google Workspace


AOL Mail


Note: none of the above services supports web fonts

Partial support for some options

Messages display correctly, but some options (with low impact) may not display as expected.


Microsoft Outlook for Windows on high-resolution displays *

  • Web fonts are not supported. Applies a font resize that may expand the layout.

Not yet supported

This list includes new and updated mobile email clients with compatibility issues.

Huawei Mail App (Android)

Only basic settings works

When sending to these clients, we recommend using text and images in a simple one-column layout.



Lotus Notes 7, 8 & 8.5

Windows 10 Mail

Windows 11 Mail

IBM Notes 9 & 10


Libero Mail


Web clients (mobile browser versions)

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