Just register for one (zoho, google provides them for example. Zoho probably still gives you upto 5 emails for free. Not sure.), see their integration docs and find out the mx records. Then visit your registrar and add those mx records in the dns settings. Additionally you might need to add spf and dkim records, instructions for which will be provided in your email service’s integration guide.Hello, I have a website hosted as Multisite on OVH. I would like to create an email with this domain. How could I do it?