The Webmail is enabled.It is not my first account. I have transfered one address to Dreamhost but that has just .com ending and with that international ending, my registra has option for NS (meaning I can use ns1.dreamhost.com).
This time, my ending is .vn and for some reason, my registra does not have NS option for it. I have to use A option(giving IP) and also giving IP for mail address. As such, I can only access: mail.mydomain.com.
I use account that I have set up before to send to new address but got error: relay access denied.