In terms of I understand to be able they (migrated end users) could Focus on o365 absolutely we have configure dns configurations on domain which we selected as default EAC. If we increase the records which might be essential, the zimbra would not begin do the job adequately. In this https://free-webmail-zimbra-migra35566.bleepblogs.com/28436239/indicators-on-zimbra-migration-service-you-should-know