365 Tentant to Tenant Migration

https://learn.microsoft.com/en-us/microsoft-365/enterprise/cross-tenant-mailbox-migration?view=o365-worldwide Teams Meetings need to be recreated Dont use Sharegate ( Avepoint ) https://pariswells.com/blog/research/how-to-find-out-what-tenant-teams-meetings-are-from-after-migration https://github.com/smcavinue/AdminSeanMc/tree/master/Tenant%20Migration%20Assessment

Essential 8

GitHub – microsoft/Intune-ACSC-Windows-Hardening-Guidelines: Collection of Intune policies that could assist with implementing ACSC’s Windows hardening guidance.As Built As Configured (ABAC) (desktop.gov.au)Service Trust Portal (microsoft.com)

DMARC services

You can get a free RUF record analyzer from postmarkapp.com at https://dmarc.postmarkapp.com/For 365https://trust.valimail.com/Microsoft2021