Mailbox doesn't work

I registered my domain with namecheap.com and is hosted by Deramhost.

I created email address on Dreamhost’s Web Panel, but when I click mailbox manager, it says “This webpage is not available.” It’s been a while since I created this email address. Do I need to do something else for the emailbox to work? I’m new to this and can’t figure out. I think I’m still on a trial period of Dreamhost as I signed up quite recently, if that matters.

Thank you for your help.

Did you set the nameservers for the domain to ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com? If so how much time has passed since? It takes 12-24 hours for that setting to propagate.

You can post the domain name, which will allow us to check your DNS settings.

I waited a little and it worked. Thank you!