accepted domain

Hello,

I migrated one Exchange domain to office 365 (export pst-->import pst to office 365)

After deleting accepted domain for this domain  in Exchange,local users from other domains on this Exchange server are unable to send mail to this domain.

If I send from gmail,mail is delivered to office 365 for this domain.

So,removing accepted domain not working for this server.

If I create new user in office 365 for this domain,mail is delivered from local server but for existing users does not work.

If I remove(delete) existing user on Exchange server (AD) it wont send to same user in office 365

but if I remove autocomplete for that user in Outlook it sends to this user office 365 account with no problem

This is similar problem

http://forums.msexchange.org/Exchange_server_still_acts_authoritative_for_removed_accepted_domain/m_1800544861/tm.htm

Any advice except removing autocomplete on every computer?