In case you still don’t know, on February 1st, major DNS resolver software vendors and DNS public resolvers will STOP doing workarounds to avoid misconfigurations in authoritative DNS servers and will start FAILING on errors found (especially regarding EDNS configuration and filtering).
This has been announced months ago, you can find all the info in https://dnsflagday.net/
Even when we are less than one month away from the flag day, Dreamhost’s authoritative servers don’t seem to be properly configured for this (even for their own domain dreamhost.com).
The friendly Dreamhost DNS staff could do much worse than check the DNS software, configuration and filters in ns.dreamhost.com.
See https://ednscomp.isc.org/ednscomp/c9f055769a for a list of current errors.
You can check any domain name at https://ednscomp.isc.org/ednscomp