No, you cannot use TXT records instead of CNAME for host mapping in Zendesk. CNAME is an essential record required for the host mapping to function as expected. Without it, the host mapping will not work properly.
To replace your SSL certificate on Zendesk, you need to use the hosted SSL feature. This allows you to swap out your existing SSL certificate for a new one. For detailed steps on how to do this, you can refer to the [Replacing a…
The first step for SSL configuration on Zendesk is to perform Host Mapping for Zendesk on your company domain. This is crucial to ensure that your SSL setup is correctly aligned with your domain settings.