after changing mx record to office365, accounts not able to receive new emails

i did migration from exhcnage 2010 to office365
did migration using hybrid configuration wizard. everything was good with migration.

emails working sendind/receiving both ways using exchange server mx record.
i changed to office365 mx record, and office365 accounts not receiving emails now. but they can send out.

is there anything you guys can give me any ideas why after changing mxrecord,  accounts were not able to receive new emails ??
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Please double check new mx records. Most probably is something wrong with them. Where do you have your mailboxes?

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Mr.XAuthor Commented:
hi, thanks.
i have fixed it. i have deleted all my imap and pop records from dns console which were pointing to old exchange server. now all working
Matt DaviesSenior Support EngineerCommented:
Good rews
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