Help! Custom MX for my domain

Hello.

I've been trying to create some accounts with my domain:

kunturfengperu.com

I bougth the domain on dreamhost.

I used this configuration that outlook ask me for:

I talk whit support from DreamHost, they told me that the custom MX was succesfully created.

But I can't create any account yet because when I enter to domains,live.com I got a "Pending changes".

Please I need a solution. I've been trying for 2 months!!!

Thanks

Question about Outlook Express