Hi Customer,
Thanks for choosing Office 365.
I would like to answer your question:
Q1: About the question of the MigrationWiz tools.
A1: Since our forum is not focus on the MigrationWiz tools, I suggest you contact the MigrationWiz support for get more professional support.
Q2: How will I access the google apps email that was received after the move since the DNS records take some hours to propagate?
A2: According to your situation, you can setup an auto forward at Google apps email account and forward the mail to the related user account which on Office 365 server with the UPN (User Principle Name) “user@xxx.onmicrosoft.com”, so the mail will auto forward to Office 365 during time of DNS propagating.
Thanks,
Wilfred Ying