bhoobalan - we are working on a solution for scripts/automation.
anameihavetoenter - Don't understand your question.
Venkata_R - Lync client doesn't support Modern Auth afaik, but nor should it be trying to connect to EXO for any users which I assume are homed on-prem.
David Abad - F1 users can use OWA (this change has no impact on that), Outlook for iOS/Android and POP/IMAP. Outlook for iOS/Android already support Modern Auth and uses it already, so POP/IMAP are the two to think about - if you want to keep using them then you'll need to find a client that support POP/IMAP with OAuth.
CoreyCTI and Eric Watkins - Sorry, but we're not adding app passwords for IMAP. We're providing 13 months notice of this change, you need to start reaching out to the developers of those apps.
Gary Smith - there are plenty of solutions in the market - or you could try switch to Outlook mobile - it is a great client.
simcpk - good point, thanks. Soon
Jesse Thompson - it won't depend upon ADFS.
JayFMSTechComm - correct, no more app passwords. OAuth ftw. What you are asking for should already work in Android. Sync of contacts from your mailbox, to Outlook on your device, to your local contacts store - and vice versa.