Duda | Site Hosting

Hi there,

i am currently working with Duda as a CMS. I publish my pages according to the guide with CNAME and A Records.

https://support.duda.co/hc/en-us/articles/360060106454-Go-Live-Publish-and-Set-Up-Your-Domain

Now, my provider told me I should not do this because it messes up with the RFC and creates undelivered mails on the mail server.

Is there any opportunity to host the pages without CNAME usage?

Please be calm with me since I do not have professional web knowledge :/ I hope...

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