IMAP migration error from Hosted Email to office 365

Hi,

Got error while doing IMAP migration :

Error: MigrationTransientException: We were unable to reach your email provider. Please check your server settings, or try again later. --> We were unable to reach your email provider. Please check your server settings, or try again later. --> Connection timed out. --> A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond [::ffff:xxx.xxx.xxx.xxx]:143 

 

Error: MigrationTransientException: Imap server reported an error during AuthenticateCommand indicating that a subsystem is currently unavailable: ‎'Temporary authentication failure. [ Destination Server URL :2017-12-07 03:05:17]‎'. --> Imap server reported an error during AuthenticateCommand indicating that a subsystem is currently unavailable: ‎'Temporary authentication failure. [Destination Server URL:2017-12-07 03:05:17]‎'. 

 

Any suggestions ?

 

Thanks