In the Dreamhost control panel >> Support >> Data Centers,
( https://panel.dreamhost.com/index.cgi?tree=support.dc& )
please report the actual hostnames.
For example, please report that my “Mail service” is “on sub5.mail.dreamhost.com” instead of “on homiemail-sub5”.
(I’m not the only one who finds this confusing; see
Thank you. – coder1