Are you on the path to implement Engage, or an existing customer wanting to create a new design theme? This guide provides all the information you need to acquire a unique design theme making your brand easy to love.

Email is still one of the most important channels in CRM marketing so it might not come as a surprise that we take the crafting of email design themes very seriously. A theme is a module-based design package that consists of a set of modules adapted to your brand's design. Within each module it's possible to add and remove elements to customize it. This gives you the possibility to create a unique email design with just a small set of modules.

Starter pack

In all Engage customer implementations, a theme with eight essential modules is included. In most cases, these modules are enough to create a unique and flexible email design. The modules will be adapted to fit the look and feel of your brand. These are the adjustments that can be made:

  • Specified font: one custom font and one fallback font
  • Specified font size
  • Specified padding
  • Specified margins
  • Choice of button design
  • Added default colors to be used in the modules
  • Added headings/subtitles, brands and text elements
  • Setting whether the text and/or button should be aligned center or left

It is of course possible to add more modules to your design theme. We offer a range of Essential modules, Advanced modules, and Tailor-made solutions.

Essential modules

Our essential modules are our most commonly used ones.

Content modules
01. Header Center
01.1 Header Left
01.2 Header Center + Member Info
02. Menu 3 Links + Pipes
02.1 Menu 5 Links
03. Campaign
03.1 Campaign Hero
03.2 Campaign Background Image
04. Text + Image Left Responsive
04.1 Text + Image Left
05. Text + Image Right Responsive
05.1 Text + Image Right
06. Two Columns Responsive
06.1 Two Columns
07. Three Columns Responsive
07.1 Three Columns
Tailor-made modules
08. Four Columns Responsive
09. Divider Default
09.1 Divider Full Width
09.2 Divider Header + Subtitle
09.3 Divider + Text
17. Footer
Personalized modules
10. NPS
11. Promotion
12. Member
14. Reward Voucher
Modules with Product feed
03.3 Campaign + PF
06.3 Two Columns + PF
07.3 Three Columns + PF
08.1 Four Columns + PF
Module for Abandoned Cart
Abandoned Cart
Modules for transactional communication
T01. Order Header
T02. Order Contact Information
T03. Order Items

Advanced modules

Our advanced modules require a bit more coding which is also reflected by a slightly higher pricing.

Content modules
S02. Menu 5 links (3x2 in mobile)
S04.1 Text vertical centered + Image left (fixed)
S05.1 Text vertical centered + Image right (fixed)
S06.3 Two Columns Fixed
S06.4 Two Columns Fixed + Subtitle
S06.5 Two Columns Fixed PF
S07.3 Three Columns Fixed
S07.4 Three Columns Fixed + Subtitle
S07.5 Three Columns Fixed PF
S16. Product recommendation (four column)
Modules with Product feed
03.3 Campaign + PF
06.3 Two Columns + PF
07.3 Three Columns + PF
08.1 Four Columns + PF

Tailor-made modules

If you have a request that is not covered by our essential or advanced modules, we can have a look at a tailor-made solution. In these cases, we'll need a sketch with exact pixels for text size, margins, padding, for both desktop and mobile.

  • Desktop sketch – width 600px
  • Mobile sketch – width 375px
  • Font size and margin/padding definitions – always in px (not pt)
  • Include all the modules in the sketch


Historically, email clients have not supported web fonts, only the most common web-safe fonts that come with most computers. The last couple of years a few email clients have started to support special web fonts, and you are now able to use your own font. This, however, still does not mean that it will work for all email clients, which is why you always need to choose a fallback font that is supported for all clients.

The standard web-safe fonts that are supported in 99 % of the email clients:

  • Arial
  • Georgia
  • Helvetica
  • Times New Roman
  • Verdana

Other web fonts that are supported in ~90–95 % of the email clients:

  • Sans-serif:
    Arial Black
  • Comic Sans MSImpact
  • Tahoma
  • Trebuchet MS


  • Palatino


  • Courier New

Email clients that support special web fonts:

  • Apple Mail
  • iPhone iOS/native app (the email app that is included in the phone)
  • Samsung Mail (Android 8.0
  • Gmail app in mobile only support the special web fonts Open Sans and Roboto besides the safe standard fonts as listed in the previous paragraph
  • Android (default mail client, not Gmail app)
  • Outlook 2000
  • app
  • Thunderbird

If I want to use special web fonts, how many can I use?

Every font has its specific size, which means that if you have too many different fonts in your design theme, there’s a risk that your emails will be too heavy. It can affect the uploading time for the recipient and affect your deliverability and status as a sender. Therefore, we do not recommend using more than 2-3 fonts* in your design theme and the total size of all fonts should not be higher than 500kb.

When sending the special fonts to us, it is important that you send it in the format .woff2 and .ttf. The format .otf is not supported in email clients.

*With 2–3 fonts it also includes different variations of one font—for example, regular, italic, bold. It depends on how the font is built.

Dark mode

When designing your emails, you should also have Dark Mode in mind. For example, we strongly recommend you work with your design and use logos and icons that will work for both dark and light mode. In that way it will work in all email clients.

You can get some tips on how to adapt your design to Dark Mode in this article. You'll also learn how Voyado can help you adapt your email design theme.

Guaranteed quality by testing

As a part of the production process, we always test your design theme in different email clients and devices to make sure that your modules will look great for all recipients. Before we ask you to test the final design, we'll make sure everything works and looks as it should. We use Litmus and Email on Acid as testing tools (the two most popular and reliable tools in email development) to render the email as if it was sent to the specific email clients.

We test the most popular and updated email clients and devices used around the world:

Webmail clients
AOL Chrome (Win10)
AOL Edge (Win10)
AOL Firefox (Win10)
Gmail Chrome (Win10)
Gmail Edge (Win10)
Gmail Firefox (Win10)
Google Workspace Chrome (Win10)
Google Workspace Edge (Win10)
Google Workspace Firefox (Win10)
Office 365 Chrome (Win10)
Office 365 Edge (Win10)
Office 365 Firefox (Win10) Chrome (Win10) Edge (Win10) Firefox (Win10)
Yahoo Chrome (Win10)
Yahoo Edge (Win10)
Yahoo Firefox (Win10)
Desktop clients
Apple Mail 13 (macOS 11.15)
Apple Mail 15 (macOS 12)
Outlook Office 365 (macOS 10.15)
Outlook Office 365 (macOS 12)
Outlook Office 365 (Win10)
Outlook 2010 (Win10)
Outlook 2013 (Win10)
Outlook 2016 (Win10)
Outlook 2019 (Win10)
Mobile clients iOS
iPhone XR (iOS14)
iPhone SE 2nd Gen (iOS14)
iPhone SE 2nd Gen (iOS15)
iPhone 11 Pro Max (iOS14)
iPhone 11 (iOS14)
iPhone 11 Pro (iOS14)
iPhone 11 (iOS14)
iPhone 11 Pro (iOS15)
iPhone 12 Pro Max (iOS15)
iPhone 12 mini (iOS15)
iPhone 12 (iOS15)
iPhone 13 (iOS15)
iPhone 13 Pro Max (iOS15)
iPhone 13 Mini (iOS15)
iPhone 14 Pro (iOS16)
iPhone 14 Pro Max (iOS16)
iPhone 14 (iOS16)
Mobile clients Android
Gmail App Pixel 2 (Android 8)
Gmail App Pixel 3 (Android 9)
Gmail App Pixel 4 (Android 10)
Gmail App Pixel 5 (Android 11)
Gmail App Pixel 6 (Android 12)
Gmail App Pixel 6 (Android 13)
Outlook App Pixel 6 (Android 12)
Outlook App 13 (iOS15)
Tablet clients iOS
iPad Pro 11” (iOS15)
iPad Pro 12,9” (iOS15)
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