I host a very small site for a friend. Until now we have happily been using free domain email via gmail, but BT (their broadband and phone provider) have been upgrading them to Office 365 and need to verify the account so I've switched to DH mail. I have successfully used MX custom records in the past; the problem is that the record they have sent does not conform to the formula used by Dreamhost. They simply shrug when I say it doesn't work and insist that it does for everyone else.
I've been instructed to "set up ms20424383.msv1.invalid to preference of 50,", but when I put that into the custom record box I just get "Invalid: "invalid" is not a valid TLD for a domain!" and of course there is no box for the "preference of 50" either.
Does anyone have any ideas? I'm getting a little desperate here - so far this has taken over four hours of my (unpaid) time. I have emailed DH support.