Mail setup with multiple domains

Hey everyone,

we’re using yunohost in our organisation, mail (+roundcube) and nextcloud are working like a charm. I wanted to migrate all existing domains and emails to yunohost now, but I ran into a problem with DNS. When I setup everything according to DNS zone configuration | Yunohost Documentation including MX record, I realized I can only set one reverse DNS entry for the servers IP. Is there a way to have additional domains be managed by the mailserver of the main/default domain so I only need to set this one reverse DNS entry? Or should I think of a different solution to manage the other domains as this is not a common use case? Sorry if this was covered before, all topics I could find on reverse DNS were french. Thanks in advance