Good day exchange wizards, 

I would like to ask what happens if there is a shared mailbox where few of the users have access and one of the users makes a deletion. Is this change propagated to all the users' Outlooks? If so, how long does it take to propagate such change? 

I'm convinced the answer is yes - it is deleted everywhere, but I need confirmation from someone who is more experienced. 

Thank you in advance, 

SZ

It is deleted everywhere straight away. Remember that your mailbox is in Exchange. What you have in Outlook is just a cached copy.

Thank you for your prompt reply, sir, 

I wish you nice rest of the day. 

Best regards, 

SZ