Ok so I did everything tumblr asks to use a custom domain
A record pointing mydomain.com to 66 6 44 4 A record pointing www mydomain com to 66 6 44 4 Cname - pointing to domains tumblr com
And Tumblr says we don't have to change/erase our nameservers BUT turns out that mydomain keeps opening the website from my server, instead of tumblr. Which sounds natural to me, so I can't understand how can the A record own my domain instead of the nameserver?
1-) I can't leave the nameserver empty, my domain hoster doesn't allow 2-) tumblr doesn't allow their IP to be pointed as nameservers.
help :(