HTML conditional for Microsoft Outlook 2019

Question

I am trying to build the html code designed for newsletter campaign. What I need is to find a solution for if statement, that outputs code for Microsoft Outlook 2019.

Working for Outlook 2016 and Outlook 2019:

<!--[if mso 16]>
<span style="color:red">mso 16</span>
<![endif]-->

Not working at all:

<!--[if gt mso 16]>
<span style="color:red">gt mso 16</span>
<![endif]-->

<!--[if mso 19]>
<span style="color:red">mso 19</span>
<![endif]-->

<!--[if mso 365]>
<span style="color:red">mso 365</span>
<![endif]-->

Is there any HTML conditional that allows to distinguish Outlook 2016 and Outlook 2019?

Answer 1

Unfortunately it appears Outlook 2019 uses the same conditional as Outlook 2016, as you have found (from testing in Litmus).

Additionally, Outlook doesn't support feature sniffing such as @supports (or the limited @media, except apparently on the Mac version).

The only way forward for differentiating them is that Outlook 2019 apparently supports SVGs now. I haven't been able to get this to work on my tests, but SVG support across the board is pretty poor so I'm not sure it's any use anyway.