Hello!

I´m currently performing an staged migration to Office 365.

I´ve got an on-premise Exchnage 2007 server with no more than 60 mailboxes.

15 of them are  large mailboxes, with more than 10 GB.

As i create a migration batch for any of those "large" workers, the user stops receiving NEW mails in his on premise account, and starts receiving them on cloud ( this is perfectly normal ).

But my problem is, and i´m in a hurry about that, that migration process takes more than 3 days for those users.

Meanwhile , the user may only read new mails on portal.microsoftonline.com. HE complains about not beeing able to read new/old mails simultaneously.

I cant conver users to meu (mailbox enabled user ) before the migration process ends because that would stop definitely the migration

Indeed, following some wrong advice, y started an staged migration process, paused it, convertes user to MEU, and tried to resume migration. Right now i´ve got a fresh new mailbox in office 365 cloud, with no change to import the old 2GB´sinfo mails.

 Is there asolution for staged migration, with slow connections, nad with zero downtime ?

Thanks in advance