I do not think it is the email type that you used that
caused delay in the registration approval,it could just be a normal delay from steemit,steemit do
manual approval of registrations and because there are many people registering on
steemit,sometimes it can take up to three weeks for an account to be approved,so be patient and
you will have your account approved,i do not think the problem is with the email you used
Its been 6 weeks now. I dont think i will get the approval